Conference News & Coverage

Diamond Sponsors

  • Fotango
  • Intel
  • Microsoft

Gold Sponsors

  • Dell Inc.
  • Hewlett Packard
  • IBM
  • Mozilla Corporation

Silver Sponsors

  • ActiveState
  • Autodesk
  • Google
  • Greenplum
  • Ingres
  • Novell, Inc.
  • OpSource
  • Rearden Commerce
  • SnapLogic
  • ThoughtWorks
  • Ticketmaster

Sponsors & Exhibitors

For information on exhibition and sponsorship opportunities at the convention, contact Sharon Cordesse

For Media Partnership opportunities, please contact Avila Reese

Download the OSCON Sponsor/Exhibitor Prospectus (PDF).

Conference News

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Press & Media

For media-related inquiries, contact Dawn Applegate at

Program Ideas

Drop us a line at and tell us who and/or what would make OSCON a must-attend event.

User Groups & Professional Associations

For user group and professional association related inquiries, contact Marsee Henon at


Please check back regularly to see the latest additions to the OSCON program.

Kristen Accardi

Linux Kernel Hacker, Intel Corporation

Kristen Carlson Accardi is a Linux kernel developer working at Intel's Open Source Technology Center. She has been a Linux developer since 2000. Kristen is currently the PCI hotplug subsystem maintainer for the Linux kernel.

Click here for more info.

Brian Aker

Director of Architecture, MySQL AB

Brian Aker Brian Aker is the director of architecture for MySQL when he helps set direction for technology and looks for opportunities to harness and shape the MySQL database for efforts in Web, OEM, and telephony. In his copious amounts of free time he works on Apache and Perl modules, and hacks on the Asterisk Telephony System (hence, never has a working home phone number). In the past, he has been involved with projects for the Army Engineer Corps, The Virtual Hospital, Splunk, and Slashdot. He lives in Seattle with his dog Rosalynd.

Click here for more info.

Jason Allen

Co-founder and VP of Engineering, Ohloh

Jason Allen Jason is co-founder and Vice President of Engineering at Ohloh, a community and information resource for people who create and use open source software. Jason was responsible for the architecture, design, and implementation of the distributed Web services tools platform at Microsoft. Throughout his tenure at Microsoft Jason has held such positions as Development Manager for XML Web Services and as Development Lead for Microsoft Office where he drove the design, architecture, and implementation of several components, including Excel Spreadsheet & Charting XML as well as several Charting Engines. Jason has authored several software patents and holds a Bachelor's degree in Computer Science (Honors) from McGill University in Montreal Canada.

Click here for more info.

Muness Alrubaie

ThoughtWorks, Inc.

Muness Alrubaie Muness is a developer with ThoughtWorks. He has been programming for fun and profit for over 10 years. He'd love to no longer be constrained by hierarchies as the only way to organize things. His small contribution to that end has been to create and contribute to TracTags. These days Muness is exploring Ruby, web app testing and DSLs.

Click here for more info.

Richard Amerman

Principal, 7 Tech NW

Speaker biography coming soon.

Click here for more info.

Kaj Arnö

VP Community, MySQL AB

Kaj Arnö Kaj Arnö is VP Community at MySQL AB. He promotes the 3 Ps of the MySQL Community: Popularity, Participation and Pioneering -- connecting the external and internal MySQL developers with each other. Kaj believes there are internal connections between his favourite topics which include arranging meetings in a virtual organisation, coping with timezones, managing cross-cultural teams and singing drinking songs (a practice of his native Finland that he is promoting with varied success in Munich, Germany where he's currently living).

Click here for more info.

Matt Asay

VP, Business Development, Alfresco Software

Matt Asay Matt Asay is VP of Business Development for Alfresco. Prior to Alfresco Asay co-founded Novell's Linux Business Office, founded the Open Source Business Conference, and ran embedded Linux vendor Lineo's Network & Communications division.

Asay earned a JD from Stanford Law School, where he spent two of his three years studying open source licensing under Professor Lawrence Lessig. Matt blogs for InfoWorld and for CNET.

Click here for more info.

Marcus Börger


Marcus Börger works for Google in Zürich, Switzerland, andspecializes in C/C++, databases, UML, XML, and of course PHP. To the PHP community, he is also known as helly. He is one of the core developers focused on the new OO features of PHP 5 and Zend Engine 2. Börger has 'hacked' around on all kinds of stuff for over 15 years.

Click here for more info.

Jono Bacon

Ubuntu Community Manager, Canonical

Jono Bacon

Jono Bacon works for Canonical as the Ubuntu Community Manager and helps to grow, optimise, encourage and expand the global Ubuntu community. In addition to this, he is a lead developer on Jokosher, the co-founder of LUGRadio and has founded and worked on a number of previous projects such as KDE, KDE::Enterprise, the Infopoint project, KDE Usability Study and more.

Click here for more info.

Mitchell Baker

CEO, Mozilla Corporation

Mitchell Baker Mitchell Baker is CEO of Mozilla Corporation, and Chief Lizard Wrangler for the Mozilla project as a whole. The Mozilla project strives to maintain choice and innovation in key Internet applications by delivering great, user-friendly software, such as the Firefox web browser and Thunderbird email client. As one of the world's largest open source software development projects, the Mozilla project includes paid and volunteer staff members, engineers at numerous companies who are paid to work on Mozilla, a volunteer population numbering in the thousands, a range of spin-off projects, and a set of companies using Mozilla technology to build products.

Click here for more info.

Eric Baldeschwieler

Director of Engineering, Yahoo!

Eric Baldeschwieler Eric Baldeschwieler leads a team of engineers at Yahoo! that has spent the last 18 months enhancing the Hadoop open source project to run on thousands of computers. They have supported a large community of internal users of Hadoop on shared clusters. Eric has lead large scale infrastructure projects to support web search and other activities at Yahoo! and Inktomi since 1996.

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Tarus Balog

Project Maintainer, The OpenNMS Project

Tarus Balog has over 20 years of experience managing digital networks, and most of that time was spent with expensive commercial management products. For over the last five years he has been involved with OpenNMS, the first real open source alternative for managing the enterprise.

Click here for more info.

William Bereza

Co-founder, Atomic Object

William Bereza is a co-founder of Atomic Object. He has been for fun since 1989 when he first learned BASIC on a 10 year old TRS-80.

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Artur Bergman

Engineering Manager, Six Apart

Artur Bergman spends most of the time achieving the impossible. He has co-founded four companies ranging from Internet based stock exchanges to content management system solutions. In the open source world, he was mostly involved in the Perl 5 development process as well as working on a wide range of topics from open source large scale storage systems to distributed peer2peer version control systems. Today he works managing the engineering team at Six Apart that develops the software run by; another impossible feat.

Click here for more info.

Scott Berkun

Consultant & Author, Berkun Consulting

Scott Berkun Scott Berkun is an author and consultant. He wrote the bestselling The Art of Project Management for O'Reilly, teaches creative thinking at the University of Washington, and writes on management and design at His next book, The Myths of Innovation, will be published by O'Reilly in 2007.

Click here for more info.

Josh Berkus

PostgreSQL Lead, Sun Microsystems

Josh Berkus Josh Berkus has been a member of the PostgreSQL Core Team for four years, and leads PostgreSQL contributions & support for Sun Microsystems, and is on the Board of Directors for Software in the Public Interest, Inc. He has been a leader of several other OSS projects, including, OpenBRR and LedgerSMB.

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Daniel Berlin


Daniel Berlin is a member of Google's Open Source Program Office, where he does engineering, software licensing, and license compliance work. He is a maintainer of several areas of GCC, as well as a Subversion developer. He holds a law degree from George Washington University, and a BS in Computer Science from the University of Rochester. He is admitted to practice law before the Patent and Trademark Office, the Court of Appeals for the Federal Circuit, and in Maryland.

Click here for more info.

Robert Bernier

PostgreSQL Business Intelligence Analyst, Cricket Communications

Robert is a PostgreSQL consultant and trainer. He has written for publications such as Sys-Admin, Hakin9 and for the O'Reilly webportal. He is the maintainer of the live CD, pg_live, and is the lead Systems Designer for the ITERation project for the Treasury Board Secretariat (Canadian Federal Government).

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Aaron Boodman

Google, Inc.

Aaron Boodman has been developing web applications for the last five years using many technologies, but is most well known for his work with JavaScript DHTML AJAX. By day, he works at Google on whatever fun front-end projects happen to be going on. By night, he is the author of, a weblog about web development; numerous open-source JavaScript libraries; and Greasemonkey, the user script manager for Firefox.

Click here for more info.

David Boswell

David has been involved in the free and open source community for more than six years. He is one of the co-founders of, a site that offers free project hosting for Mozilla application and extension developers, and the non-profit Mozdev Community Organization. David has been involved with other open source communities hosted by Sun Microsystems, Nokia and Hewlett Packard.

Click here for more info.

Giles Bowkett

Enterprise Rails Developer / Project Manager, Bitscribe

Giles Bowkett is an Enterprise Rails Developer and Project Manager for Bitscribe, a consultancy in Los Angeles. He's built Web apps for over 30 different companies, in a variety of languages and frameworks.

Click here for more info.

Gary Bradski

Gary Bradski Dr. Gary Rost Bradski is VP of Technology at Rexee Inc. a new startup applying machine learning to rich media on the web. He is also a consulting professor in the CS department at Stanford University, AI Lab where he mentors robotics, machine leanring and computer vision research He has a BS degree in EECS from U.C. Berkeley and a PhD from Boston University. His current interest is in applying highly scalable statistical models in computer vision and in continuous machine "learning in clutter" in robotics in general. Some external tools he started for this are the Open Source Computer Vision Library (OpenCV HYPERLINK "" \n /opencvlibrary/), the statistical Machine Learning Library (MLL comes with OpenCV), and the Probabilistic Network Library (PNL). OpenCV is used around the world in research, government and commercially (for example in wide use within Google). All libraries are open, and free on Source Forge for commercial or research purposes. The vision libraries use and helped develop a notable part of the commercial Intel performance primitives library (IPP). Gary led the vision team for Stanley, the Stanford robot that won the DARPA Grand Challenge autonomous race across the desert for a $2M team prize. He lives in Palo Alto with his wife and 3 daughters and bikes road or mountains as much as he can.

Click here for more info.

Aaron Brashears

Speaker biography coming soon.

Click here for more info.

Roger Brinkley

Senior Staff Engineer, Sun Microsystems

Roger Brinkley Roger Brinkley is the Mobile & Embedded Community Leader and a Senior Staff Engineer at Sun Microsystems. He has worked at Sun as the community leader for both the JDK and JavaDesktop communities and was the chief architect of the JavaHelp API. He has a bachelors degree in computer science and quantitative analysis and a masters degree in business administration.

Click here for more info.

Joe Brockmeier

Editorial Director, OSTG

Joe 'Zonker' Brockmeier is the editorial director for Brockmeier has been using and writing about Linux and open source for more than 10 years, and has written for,, Linux Weekly News, Linux Magazine, IBM developerWorks,, Sys Admin Magazine, and a number of other publications.

Click here for more info.

Nathan Bubna

ESHA Research

Speaker biography coming soon.

Click here for more info.

Tim Bunce

CTO, Data Plan Services

Tim Bunce Tim Bunce has been a Perl5-porter since 1994, contributing to the development of the Perl language and many of its core modules. He is the author and maintainer of the Perl DBI module.

He is the founder and CTO of Data-Plan Services, a Perl, database, and performance consultancy with an international client base. He is co-author, along with Alligator Descartes, of Programming the Perl DBI, the definitive book on DBI, published by O'Reilly Media.

Click here for more info.

Kurt Cagle

Senior Consultant, Metaphorical Web

Kurt Cagle is an author of twenty books and numerous articles and blogs on XML, AJAX and Web 2.0 technologies, is the principle consultant of Metaphorical Web, and runs the web portal.

Click here for more info.

Christy Canida

Community and Marketing Manager, Instructables

Christy Canida Christy Canida is the Community and Marketing Manager at Instructables. She holds an SB in Biology from MIT, and has worked in academic transgenic mouse labs and set up new biotech production facilities. Christy likes taxidermy, blinky lights, and good food, and currently has the second-highest number of projects up on Instructables.

Click here for more info.

Brian Capouch

Assistant Professor, Computer Science, Saint Joseph's College

Brian Capouch Brian Capouch is an assistant professor and chair of the department of computer science at Saint Joseph's College in Rensselaer, Indiana. He also operates a small wireless ISP. He has taught two college classes and given presentations on VoIP and Asterisk. Currently he is restoring a 152-year-old railroad hotel.

Click here for more info.

Brad Carlile

Sun Microsystems

Speaker biography coming soon.

Click here for more info.


Technical Evangelist, O'Reilly Media, Inc.

chromatic is the technical editor of the O'Reilly Network. He edits, the Linux Dev Center, and In his spare time, he is a prolific CPAN developer, a member of the Perl 6 design team, and a contributor to Perl 5, Parrot, and Pugs.

chromatic is also the author or co-author of several books, including Perl Testing: A Developer's Notebook (with Ian Langworth) and Perl Hacks (with Damian Conway and Curtis "Ovid" Poe).

Click here for more info.

Wesley Chun

Principal, CyberWeb Consulting

Wesley Chun WESLEY CHUN specializes in Python software engineering and technical training ( He has been programming, teaching, and writing since 1980, including more than a decade of Python. While at Yahoo!, he helped create Yahoo!Mail and Yahoo! People Search using Python. He is the author of "Core Python Programming" ( and holds degrees in Computer Science, Mathematics, and Music from the University of California.

Click here for more info.

Wil Clouser

Web Developer, Mozilla

Wil Clouser is a member of the web development team at Mozilla, supporting and developing their dynamic, high traffic websites. His current focus is on the technological side of internationalization and localization of websites.

Click here for more info.

Ben Collins-Sussman

Software Engineer, Google

Ben Collins-Sussman Ben is a member of Google's Open Source Program Office, working on projects to promote the spread of open source software both inside and outside the company. Recently, his team released open source project hosting on Prior to Google, Ben spent five years with CollabNet as one the original designers and authors of Subversion. He is still active in the Subversion community, and is also a co-author of the O'Reilly book "Version Control with Subversion". His homepage is at

Click here for more info.

Kees Cook

Ubuntu Software Engineer, Canonical Ltd.

Kees Cook has been working with Free Software since 1994, and is employed by Canonical as an Ubuntu Security Engineer. In his spare time, he helps admin the mirrors on, and hacks on Inkscape. He has written several utilities including GOPchop and Sendpage, and contributes to other projects including Wine, MPlayer, OpenSSH, and the Linux Kernel.

Click here for more info.

Danese Cooper

Open Source Diva, Intel and Open Source Initiative

Danese Cooper Danese Cooper has a 15-year history in the software industry and has long been an advocate for transparent development methodologies. Cooper worked for six years at Sun Microsystems, Inc. on the inception and growth of the various open source projects sponsored by Sun (including, and She was Sun's chief open source evangelist and founded Sun's Open Source Programs Office. She has unique experience implementing open source projects from within a large proprietary company. She joined the OSI Board in December 2001 and currently serves as Secretary & Treasurer. In March 2005, Cooper joined Intel to advise on open source projects, investment and support. She speaks internationally on open source and licensing issues.

Click here for more info.

Josh Cronemeyer

Software Consultant, ThoughtWorks

Josh Cronemeyer lives in Chicago and is a Software Consultant for ThoughtWorks, a global IT consultancy specializing in custom applications and no-nonsense consulting. He is currently working on a large leasing project. He also is very active in the Ruby community and volunteers his time mentoring kids in organizations such as I.C. Stars.

Click here for more info.

Doug Cutting


Doug Cutting Doug Cutting has worked on search technology for 20 years. This includes five years at Xerox PARC, three years at Apple, and over four years at Excite. In 1998 he wrote Lucene, an open-source search library which became an Apache project in 2001. In 2003 he founded Nutch, an open-source web search application, and in 2006 he started Hadoop, an open-source distributed-computing framework, both at Apache. Doug currently works for Yahoo!.

Click here for more info.

Eric David

Senior Developer, Right Media

Eric David One sunny day some years ago Eric David discovered PHP3 and on that very day in one fell swoop he left ASP2.0 and Perl via CGI to find their permanent resting place alongside the Eniac and Commodore 64. Since that time Eric has been developing interesting ways for businesses to rapidly increase their revenue with minimal investment by utilizing open-source solutions.

Click here for more info.

Scott Davis

Principle, DavisWorld Consulting

Scott Davis is an independent software developer and international speaker. His books include JBoss At Work, Google Maps API: Adding Where to Your Application, GIS for Web Developers, and Groovy Recipes. He is the Editor in Chief of aboutGroovy.

Click here for more info.

Chris DiBona

Open Source Programs Manager, Google, Inc.

Chris DiBona Chris DiBona is the Open Source Programs Manager at Google, Inc. He is responsible for a number of programs including the Summer of Code, open source license compliance and releasing open source software on Google's Code website, which can be found at Before joining Google, Chris was an editor/author for the popular online website . An internationally known advocate for open source software and related methodologies, Chris speaks regularly and writes for a great number of publications. He co-edited the award-winning anthologies Open Sources and Open Sources 2.0 from O'Reilly Media, produces the FLOSS Weekly podcast and is a cat owner.

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Cory Doctorow

Canada-US Fulbright Chair, Annenberg Center on Public Diplomacy, University of Southern California

Cory Doctorow Cory Doctorow ( is a science fiction novelist, blogger and technology activist. He is the co-editor of the popular weblog Boing Boing (, and a contributor to Wired, Popular Science, Make, the New York Times, and many other newspapers, magazines and websites. He was formerly Director of European Affairs for the Electronic Frontier Foundation (, a non-profit civil liberties group that defends freedom in technology law, policy, standards and treaties. Presently, he serves as the Fulbright Chair at the Annenberg Center for Public Diplomacy at the University of Southern California.

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Mark-Jason Dominus

Chief Programmer, Plover Systems Co.

Mark-Jason Dominus Mark Jason Dominus has been programming in Perl since 1992. He is the author of the Tie::File, Text::Template, and Memoize modules. His book _Higher-Order Perl_ was published in March 2005.

Click here for more info.

Taylor Dondich

Senior Developer, GroundWork Open Source, Inc.

Taylor is a senior developer at Groundwork Open Source Solutions. He is in charge of many of the main web technologies being developed, including Guava. He has also developed Fruity and Status Viewer, enterprise level additions to the Nagios monitoring platform. Taylor's primary focus is in building dynamic web applications leveraging Web 2.0 technologies.

Click here for more info.

James A. Duncan

CIO, Fotango

James A. Duncan James Duncan is Fotango’s Evangelist and spends a lot of his time attempting to improve software and save us from "yak-shaving". He has been active in the open source community for over 10 years and a speaker at conferences for 5. In his spare time he tries to become proficient at all forms of DIY. This effort has, thus far, been futile.

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Jay Edwards

Systems Engineer, Greater Houston OpenSolaris User Group

Jay Edwards is a Systems Administrator at AlertLogic where he helps maintain a geographically distributed network with terabytes of centralized storage. His professional interests include virtualization and parallel programming. He spends his personal time doing mathematics and cooking for his wife and daughter. While he hasn't written any books, he does read a lot of them.

Click here for more info.

Jonathan Ellis

Berkeley Data Systems

Jonathan Ellis Jonathan Ellis is an early adopter of SQLAlchemy and the author of one of the first SA extensions, SqlSoup. He is a speaker and tutorial instructor at PyCon 07 and president of the Utah Python User Group. He currently works for Berkeley Data Systems where he wrote the petabyte backend for the Mozy backup service.

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Justin Erenkrantz

Ph.D. Student, University of California, Irvine

Justin Erenkrantz Justin R. Erenkrantz is a Senior Software Engineer at Joost. He currently serves as a Director for The Apache Software Foundation. He has been a long-time contributor to the development of the Apache HTTP Server, Subversion, APR, Serf, mod_mbox, and flood.

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Schuyler Erle


Schuyler Erle Schuyler Erle is a free software developer and activist. He is responsible for NoCatAuth, an early open source wireless captive portal, and, an open source U.S. address geocoder. Erle wrote O'Reilly's Mapping Hacks with Jo Walsh and Rich Gibson, and Google Map Hacks, also with Rich.

Presently, he works with MetaCarta in Cambridge, MA, USA, developing nitfy geographic projects like OpenLayers, an open source web mapping framework written in pure JavaScript, and Gutenkarte, a service for exploring the geographic dimension of classic works of literature. Erle is proud to be a founding member of the OSGeo Foundation.

Click here for more info.

Kevin Falcone

Developer, Best Practical Solutions LLC

Kevin Falcone is a developer at Best Practical Solutions, LLC, producer of open source tools including RT: Request Tracker. At Best Practical, Kevin works on a number of projects including RT, Hiveminder, and the Jifty framework.

Click here for more info.

Rick Falkvinge

Rick Falkvinge Rick Falkvinge is the founder of the Swedish Pirate Party and the international politicized pirate movement. His leadership took the Pirate Party into the top ten parties in the last Swedish election, without a dime in the campaign chest, on the issue of defending our civil liberties against copyright aggression.

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David Fetter

Consultant, VP Product Development, Geek Cruises

David Fetter David Fetter has worked in the San Francisco Bay Area for the past six years in various dotcoms, non-profits and educational institutions including, and the UC Berkeley Extension. He has worked extensively with Oracle, PostgreSQL, MySQL, Perl, PHP, PL/SQL, Pl/PgSQL, vi and ErWin on large transaction processing systems, some of them with hundreds of thousands of page views per day, others designed for world-wide use. He has also been called in to solve critical database problems on extremely aggressive schedules, usually with much success.

In his free time, he does ceili dancing, brews beer and mead, rides his bicycle and helps run several organizations for computer professionals including the San Francisco Perl Users' Group and the San Francisco Wireless Users' Group.

Fetter will be speaking on Geekcruises' Linux Lunacy III.

Click here for more info.

Mike Fitzgerald

Principal, Wy'east Communications

Mike Fitzgerald Mike Fitzgerald is a writer, author, programmer, and teacher. He is the author of Learning Ruby (O'Reilly, 2007), XML Hacks (O'Reilly, 2004), and Learning XSLT (O'Reilly, 2003). He also wrote Building B2B Applications with XML (John Wiley, 2001), and XSL Essentials (John Wiley, 2001).

Click here for more info.

Brad Fitzpatrick

LiveJournal Founder, Hacker,

Brad Fitzpatrick Brad Fitzpatrick was the founder and CTO of Danga Interactive, best known for the popular community blogging and social networking site Fitzpatrick grew LiveJournal from its early days as a hobby project in college to a site with over 13 million accounts. Throughout LiveJournal's history, Fitzpatrick led the development of a number of open source tools and projects including memcached, OpenID, MogileFS, Perlbal, and DJabberd.

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Brian W. Fitzpatrick

Software Engineer, Google, Inc.

Brian W. Fitzpatrick Brian W. Fitzpatrick is a software engineer at Google, working on their open source efforts. Prior to that, Brian worked for CollabNet on Subversion and related version control tools. He also worked at Apple as a senior engineer in the education and professional services divisions. He is a member of the Apache Software Foundation, a Subversion developer since 2000, and a co-author of the O'Reilly book Version Control with Subversion.

Click here for more info.

Matt Fletcher

Developer, Atomic Object, LLC

Matt Fletcher has been a developer at Atomic Object since fall 2005. He has an M.S. in Computer Science from Michigan State University.

Click here for more info.

Karl Fogel

Karl Fogel

Karl Fogel is an open source developer and author. After working on CVS and writing "Open Source Development With CVS" (Coriolis, 1999), he went to CollabNet, Inc as a founding developer in the Subversion project. Based on his experiences there, he wrote "Producing Open Source Software: How to Run a Successful Free Software Project" (O'Reilly, 2005), and after a brief stint at Google, now works as an independent copyright reform activist. His secret mission is to spread open source principles and methods to areas outside software.

Click here for more info.

Dawn Foster

Director of Developer Relations, Jive Software

Dawn Foster Dawn Foster is the Director of Developer Relations at Jive Software, a collaboration software company in Portland, OR. She has more than 12 years of experience in technology and software with expertise in open source software, web 2.0, blogging, and community building. Dawn is the author of Fast Wonder: An Open Culture Blog (, organizer for Portland BarCamp activities, and is a member of the Portland Open Source Software Entrepreneurs (POSSE). Previously, Dawn worked at Compiere, Intel, and a Midwestern manufacturing company in positions ranging from Unix system administrator to market researcher to open source strategist.

Click here for more info.

Limor Fried

Adafruit Industries

Speaker biography coming soon.

Click here for more info.

Ben Fry

Ben Fry Ben Fry received his doctoral degree from the Aesthetics + Computation Group at the MIT Media Laboratory, where his research focused on combining fields such as Computer Science, Statistics, Graphic Design, and Data Visualization as a means for understanding complex data, particularly in application to visualizing genetic data.

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Tom Fukushima

Autodesk, Inc.

Speaker biography coming soon.

Click here for more info.

Wez Furlong

Lead Architect, OmniTI, Inc.

Wez Furlong is senior systems engineer at OmniTI, Inc. where he works on the fastest MTA on earth. In the PHP world, Furlong is a PHP Core developer, the so-called "King of PECL," the PHP Extension Community Library, and helps to maintain the server infrastructure. Furlong has authored and maintains a number of PHP extensions, and designed and implemented the PHP Streams layer. Furlong currently resides in Columbia, Maryland with his wife, son, and two dogs.

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Justin Gallardo

OSU Open Source Lab

Justin Gallardo is a computer science student at Oregon State University, currently employed by the Open Source Lab as a Sugar developer, working on the OLPC project. He entered the OLPC project by finishing up the port of AbiWord to Sugar.

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Matthew Garrett

Matthew Garrett spends his working time studying fruitfly genetics and his spare time making laptops work in Linux. Head of the Ubuntu laptop team, Matthew's Linux involvement covers the entire stack from kernel to user applications.

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Dave Gebhart

Senior Developer, Sabre, Inc.

Dave Gebhart is a co-founder of Commonwealth, an internal open-source project at Sabre, Inc. He has worked everything from defense to aerospace, startups to large corporations using everything from Jovial to Ruby. When not working with the Foundation Team at Sabre, Dave is very happy spending time with his beautiful wife and their five children.

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Atanu Ghosh

Senior Researcher, International Computer Science Institute

Atanu Ghosh has more than 20 years of experience in IP networking. He is currently a Senior Researcher at the International Computer Science Institute (ICSI) in Berkeley where he has been championing open source networking software and leading the XORP project over the last three years. Prior to ICSI Atanu conducted research in various academic institutes in England and Australia. His research interests included multimedia communication systems, multicast protocols and active networks. Prior to research, he spent several years in the computing industry focusing on the areas of operating systems and networking. Atanu has a B.Sc.(Eng) from Queen Mary College, an M.Sc. and Ph.D from University College London.

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Rishab Ghosh

Senior Researcher, United Nations University - UNU MERIT

Rishab Aiyer Ghosh is Founding International and Managing Editor of First Monday, the on-line journal of the Internet, and Senior Researcher at the Maastricht Economic Research Institute on Innovation and Technology (UNU-MERIT) at the United Nations University, the Netherlands. He has written about the economics of free software since 1994, when he first made money selling it, and in 2005 joined the board of the Open Source Initiative.

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David Goodger

Director & Secretary, Python Software Foundation

David Goodger is a full-time Python programmer working in the financial sector, a Python Enhancement Proposal (PEP) editor, a Director and Secretary of the Python Software Foundation. David helped organize PyCon 2007 and is the Chair of PyCon 2008. He is the founder and architect of the Docutils (reStructuredText) and Polyform Puzzler projects. David lives near Montreal with his wife and two children.

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Derek Gottfrid


Derek Gottfrid Derek has spent over 6 years as a developer and architect building the systems that run

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Brendan Gregg

Sun Microsystems

Brendan Gregg is the creator of the DTraceToolkit and other open source software, and is the co-author of "Solaris Performance and Tools". Brendan has worked as a programmer, system administrator, instructor and consultant, and currently works as an engineer in an advanced products group at Sun Microsystems.

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Joe Gregorio

Senior Software Engineer, IBM

Joe Gregorio Joe Gregorio is a software engineer, member of the AtomPub Workgroup and editor of the Atom Publishing Protocol. He has a deep interest in web technologies, writing "The RESTFul Web" column for the online O'Reilly publication, writing the first desktop aggregator written in C#, and publishing various Python modules to help in putting together RESTful web services.

Click here for more info.

Victoria Gromova


Speaker biography coming soon.

Click here for more info.

Mark Gross

Engineer, Open Source Technology Center, Intel Corporation

Mark Gross is an Engineer in the Open Source Technology center at Intel Corporation. He primarily works on telecommunication computing platform Linux OS support for Intel, along with some additional activities. Mark is also the chair of the power management working group for the Consumer Electronics Linux forum. Mark is a robotics hobbyist and participates in PARTS and the occasional Dorkbot get together.

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Kirill Grouchnikov


Kirill has been writing software for the last sixteen years, the last eight doing it for a living. He is currently working in Amdocs product development group as a Java senior software engineer. His main field of interest is desktop applications, imaging algorithms and advanced UI technologies.

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Andi Gutmans

Co-Founder and VP of Technology, Zend Technologies, Inc.

Andi Gutmans Andi Gutmans has been a contributor to PHP since release 3.0. He is a member of the PHP Group, the Apache Software Foundation, and the Eclipse Foundation. Recently, Gutmans spearheaded the object-oriented improvements for the newly released PHP 5 release. He is co-founder and vice-president of technology for Zend Technologies, which provides products and services for the PHP market.

Click here for more info.

Chet Haase

Sun Microsystems

Chet Haase Chet is an architect in the Java Client Group at Sun Microsystems. He spends most of his time working on graphics and performance issues and futures.

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Robin Hanson

Speaker biography coming soon.

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Perrin Harkins

Senior Engineer, Plus Three

Perrin Harkins Perrin Harkins is a senior engineer at Plus Three, an open source-oriented consulting company. His prior experience includes development at large web-based businesses like and He has published articles on and contributed to several books about web development. He is a frequent participant in open source projects, and a member of the Apache Software Foundation.

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Jacob Harris

Senior Software Architect, New York Times Digital

Jacob Harris is a developer for the New York Times Digital and active member in the New York City Ruby group. He lives in Brooklyn and hates talking about himself in the third person.

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Matt Harrison

Senior Software Engineer, SpikeSource

Matt Harrison is a Senior Software Engineer with SpikeSource. When not busy prototyping future projects he is writing tools to integrate suites of applications. He has been using python since 2000, and has presented at PyCon as well as local Python User Groups.

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Leslie Hawthorn

Program Manager - Open Source, Google Inc.

Leslie Hawthorne Leslie Hawthorn held various roles at Google before joining the Open Source Program Office in March 2006. She manages the Google Summer of Code program and faciltates several open-source community hackathons at Google's corporate headquarters in Mountain View, California, USA. Proud to be known as Google's geek herder, Leslie holds a B.A. in English Language and Literature from U.C. Berkeley.

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Kevin Henrikson

Director of Engineering, Zimbra

Kevin Henrikson Kevin Henrikson is a Director of Engineering at Zimbra. He splits time hacking on Zimbra's AJAX collaboration suite and managing developer relations with Zimbra's open source community. Previous to Zimbra Henrikson was at Openwave, an ISP and mobile carrier software provider where he led the Mobile Messaging engineering team. He is a frequent speaker on AJAX, open source messaging, and related topics. He lives in San Mateo, California, and has a B.S. in Engineering from UCLA.

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Bill Hilf

General Manager of Platform Strategy, Microsoft Corporation

Bill Hilf Bill Hilf is the General Manager of Platform Strategy driving Microsoft's platform strategy efforts across the company. Bill's primary focus is to champion platform initiatives that cross these groups, while leading long-term strategy planning in the Windows Server and Tools organization. In this role, Bill regularly engages with the field and worldwide regions to provide a direct channel for customer and community feedback. This interaction enables customer and community input to be incorporated within Microsoft's forthcoming products and technologies.

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Darren Hoch

Linux Services Architect, StrongMail Systems

Darren Hoch been teaching Unix in government, academic and corporate settings since 1999. He wrote the course "Enterprise Intrusion Analysis" for Sun Microsystems. He was a security evangelist for Sun and frequently speaks at user groups on various Linux server topics. Darren currently works for StrongMail Systems as a Linux Services architect. He built every aspect of their Linux training department and architects all of StrongMail's enterprise Linux solutions.

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Dirk Hohndel


Speaker biography coming soon.

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Anthony Holdener

Anthony T. Holdener III is a web architect and developer working in St. Louis, MO where he concentrates on building business Intranet and Internet applications. He is currently authoring his first book for O'Reilly Media, Inc, Ajax: The Definitive Guide. When he is not writing, he enjoys learning anything new on Web technologies, but more importantly he enjoys spending time with his wife and young twins.

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Amy Hoy

Lead Interaction Designer, Lime Wire, LLC

Amy Hoy is well-known (possibly infamous) for her Ruby on Rails-oriented blog and shiny Rails cheat sheets. An almost immediate convert after stumbling onto Rails in November of 2004, she has attempted to inform and amuse others on the same path. She continues to pursue that goal through _Ruby on Rails Right-Brained Guide_, her long-in-coming book for Pragmatic Programmers. In addition to 24 glorious months of Rails (and a RailsDay grand prize win), Amy can lay claim to six years of PHP development experience and eight years of web design experience. In her day job, Amy guides the interface and iteraction for a web-based product developed in Rails.

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Andrew Huang

Vice President Hardware, Chumby Industries

Andrew "Bunnie" Huang Andrew "bunnie" Huang is a nocturnal hacker and the hardware lead; his responsibilities include the architecture, design and production of the chumby's electronics, as well as writing drivers for and maintaining the Linux kernel on the chumby. With a PhD in EE from MIT, he has completed several major projects, ranging from hacking the Xbox (and writing the eponymous book), to designing the world's first fully-integrated photonic-silicon chips running at 10 Gbps with Luxtera, Inc., to building some of the first prototype hardware for silicon nanowire device research with Caltech.

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Brian Jepson

Editor, O'Reilly Media, Inc.

Brian Jepson is an O'Reilly editor, programmer, and co-author of Mac OS X Panther for Unix Geeks and Learning Unix for Mac OS X Panther. He's also a volunteer system administrator and all-around geek for AS220, a non-profit arts center in Providence, Rhode Island. AS220 gives Rhode Island artists uncensored and unjuried forums for their work. These forums include galleries, performance space, and publications. Brian sees to it that technology, especially free software, supports that mission.

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Rod Johnson

CEO, Interface21

Rod Johnson Rod Johnson is the author of the best-selling books "Expert One-on- One J2EE Design and Development," "J2EE without EJB" and "Professional Java Development with the Spring Framework," and is the founder of the Spring Framework. He is a member of the JCP and has served on the Servlet 2.4 and JDO 2.0 Expert Groups. Rod has been working with Java and JEE since their release, consulting in the media, insurance and financial industries.

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Dave Jones

Red Hat

Where to begin? Everything hazy pre-2000, but I got involved in Linux circa `97, and wrote my first kernel patch within a few weeks of installing Linux and learning C. Worked for SuSE from 2000-2002 on various kernel related things, and then moved to Red Hat where I've been Fedora kernel maintainer (and RHEL4 kernel maintainer for a while). There really is no beginning to my talents.

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Paul Julius

Project Manager, CruiseControl Enterprise, ThoughtWorks

Paul Julius Paul works for ThoughtWorks, Inc., and cofounded the CruiseControl open source project in 2001. As well as being an active committer on the open source project, Paul serves as Product Manager for CruiseControl Enterprise.

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Denise Kalos

Vice President, Corporate Solutions, O'Reilly Media, Inc.

Denise Kalos Denise Kalos is the Vice President of Corporate Solutions, and a member of the Steering Committee for O’Reilly Media, Inc. Previously, she was the Chief HR Officer and OD Practice Leader for C-Change, Inc., a boutique strategy consultancy to Fortune 1000 financial services and high tech firms on business growth strategies and organizational alignment, and before that was part of the executive team that brought AMB Properties Corporation “public” in 1997.

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Luke Kanies

Founder, Reductive Labs

Luke Kanies has been a Unix sysadmin for almost ten years and has been focusing on development and consulting in server automation for three years. He founded Reductive Labs in 2005 with the goal of producing open source software that rethinks system administration from the ground up.

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Jacob Kaplan-Moss

Lead Developer, Lawrence Journal-World

Jacob Kaplan-Moss is one of the lead developers of Django. At his day job, he's the lead developer for the Lawrence Journal-World, a locally-owned newspaper in Lawrence, KS where Django was developed. At the Journal-World, Kaplan-Moss hacks on a number of sites including,, and, and is continually embarrassed by the multitude of media awards those sites win.

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Arthur Keller

University of California, Santa Cruz

Dr. Keller is affiliated with the Technology and Information Management program of the Baskin School of Engineering at the University of California, Santa Cruz, chair of the Executive Committee of VSPR (Voting Systems Performance Review), and on IEEE Standards Committees P1583 and P1622 on voting systems. He advises startups and expert witness on patent cases in such areas as databases and electronic commerce as Managing Partner of Minerva Consulting. We was previously Board Secretary and Founder of OVC (Open Voting Consortium).

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Andrew Kelly

Founder, Cognisync LLC

Andrew Kelly Andrew Kelly is founder of a company focused on helping software firms leverage their user communities as competitive weapons. Prior to starting Cognisync, he was Practice Manager of CollabNet’s Developer Network Consulting Practice, designing and constructing developer networks and open source communities. He’s spoken at several conferences on how to take a structured approach to designing a developer community. He’s also recently done a stint in the Peace Corps in Kazakhstan, and as a result now has visions of facilitating offshore development in that region.

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Adam Keys

Adam is a software developer from Dallas, TX. He’s been working on a book about Web Services and Ruby that he hopes to finish before the galaxy collapses on itself. He also writes on his weblog, The Real Adam on topics ranging from celebrity rumors to Ruby and microformats. When not writing bios in the third person, Adam volunteers for dog rescue and as a feral cat caretaker. In general, Adam also likes to crack jokes and make those around him laugh. Its a curse.

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Vivek Khera

MailerMailer, LLC

Vivek Khera, Ph.D., co-founder and CTO of MailerMailer LLC, has over 15 years of experience developing scalable, database-driven Internet-based products and services. He holds M.S. and Ph.D. degrees in Computer Science from Duke University and a B.S. in Computer Science from the University of Maryland, College Park.

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Michael Kimsal

Michael Kimsal is the host of, a web development podcast series. He has been been both a consultant and software developer since the early '90s, and loves every minute of it. He currently lives in North Carolina with his wife and two cats.

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Michael Koziarski

Software Consultant, Koziarski Software Limited

Michael Koziarski Michael "Koz" Koziarski is a software consultant specialising in Ruby on Rails, database architecture, web based businesses and object oriented design. He's been a contributor to Rails since 2004, a Rails Core Team member since 2005 and helps other programmers improve their code on The Rails Way, a popular Rails architecture weblog.

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Greg Kroah-Hartman

Kernel Hacker, SuSE Labs / Novell

Greg Kroah-Hartman is the current Linux kernel maintainer for more driver subsystems than he wants to admit, along with the driver core, sysfs, kobject, kref, and debugfs code as well as being one half of the -stable kernel team. He also started the udev project, and is the co-author of the O'Reilly book, Linux Device Drivers, 3rd Edition. He currently works for SuSE Labs / Novell, doing various kernel related things.

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Ben Krug

DBA, Adapt Technologies

Ben Krug is the Database Administrator at Adapt Technologies. Most of his career has been spent with Oracle, but he started out on the hierarchical database MUMPS. He has worked on and administered DB2, Sybase, Oracle, SQL Server, mSQL, and MySQL. He has appeared in an ad for Oracle, and worked on a team that won a Smithsonian Award for Excellence in Computing.

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John Lam

Program Manager, Microsoft

John Lam is the Program Manager on the Common Language Runtime team at Microsoft. John spends his days thinking about how dynamic languages can help improve the lives of developers everywhere. In his previous role, John was a partner at ObjectSharp helping customers write better software using the .NET platform.

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Adrien Lamothe

Adrien Lamothe is an independent software developer and technology analyst. He has performed an array of functions in his 20+ years in the computer industry, working for a range of companies, from computer vendors, financial, semiconductor capital equipment, training, telecoms and system engineering. In recent years, he has also provided strategic consulting to technology companies.

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Dan Langille

Dan Langille trained as a software developer but has been taking on increasing roles as a system administrator. Involved with Open Source since 1998, he created a few websites (FreeBSD Diary, FreshSource, FreshPorts), runs conferences (BSDCan, PGCon), writes for ONLamp, and in his spare time runs a consulting business concentrating on Open Source solutions. He contributes to several open source projects, including Bacula and FreeBSD.

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Rob Lanphier

Open Source Busybody, Linden Labs

Rob Lanphier Rob Lanphier serves as "open source busybody" from Linden Lab's new Seattle office, working with the community in regular in-world office hours as well as via more traditional venues, and ensuring everyone has the tools they need to be productive participants. Rob worked at RealNetworks from 1996 to 2005, helping craft two key multimedia standards (RTSP and SMIL) and coordinating RealNetworks' open source initiative (Helix Community). Immediately prior to joining Linden Lab, he was a freelance consultant specializing in MediaWiki/PHP development.

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David LaPalomento

Hewlett-Packard Co.

David LaPalomento is a software engineer at the Linux Expertise Center for Hewlett-Packard Corporation. Besides a general interest in open-source software, he is intrigued by the continual evolution of programming abstractions in the face of the rapidly-shifting hardware landscape.

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James Larsson

James Larsson James Larsson is an electronics engineer and IT historian from London for whom hardware hacking is both work and play. In addition to designing electronic equipment, he lectures and broadcasts about computer history. He also regularly performs comedy science shows where advanced scientific principles are used to do ridiculous things.

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Chris Lattner

LLVM Head Honcho, Apple Inc.

Chris Lattner is the founder and architect of the LLVM Project ( and is manager+tech-lead of the LLVM Group at Apple Inc. Chris has a broad range of interests and experience in compiler implementation, programming language design/interoperability, and operating systems. Chris has a Ph.D. in Computer Science from the University of Illinois at Urbana Champaign.

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Sansonetti Laurent

Software Engineer, Apple Inc.

Laurent Sansonetti is a software engineer working for Apple, in the core operating system team, where he maintains the entire Ruby layer of Mac OS X. Laurent is also a longtime Ruby enthousiast, developping with Ruby since 5 years and author of several free software libraries and utilities.

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Dru Lavigne

Dru Lavigne is a network and systems administrator, IT instructor, curriculum developer, and author. She has over a decade of experience administering and teaching Netware, Microsoft, Cisco, Checkpoint, SCO, Solaris, Linux and BSD systems. A prolific author, she pens the popular FreeBSD Basics column for O'Reilly and is author of BSD Hacks. She is the Chair of the BSD Certification Group Inc. and a Subject Matter Expert for the BSDA exam.

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Penny Leach

Catalyst IT

Penny Leach works for Catalyst IT, New Zealand's leading open source provider. Her focus is on sustainable open source applications for Education. She's a lead developer on Mahara, is a Moodle developer, has worked on Elgg and helped implement Eduforge, a project space for open source projects related to Education. Penny blogs at

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Robert "r0ml" Lefkowitz

Vice President, Chief Information Architect, and Head of Risk Management Technology, Asurion

Robert Lefkowitz r0ml is an software architect and systems designer with over thirty years of experience. For two decades, r0ml worked on Wall Street, developing market data, trading, risk management, and quantitative analysis systems. More recently, as chief technical architect at AT&T Wireless, he drove the improvement of their CRM, ERP, commission, and data warehousing systems. Over the last several years, r0ml has become increasingly interested in open source software strategy at large enterprises, and is a frequent speaker on the topic.

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Brian Leonard

Senior Software Engineer, Sun Microsystems, Inc.

Brian Leonard Brian Leonard works as a senior software engineer with Sun Microsystems. Most of his experience is with Java application servers, working on Java EE servers before there was a standard. Lately, Brian has switched gears to evangelize Sun technologies, where he now spends a good majority of his time getting to discuss Java, Ruby and Ruby on Rails with developers around the world.

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Rasmus Lerdorf


Rasmus Lerdorf Rasmus Lerdorf is known for having gotten the PHP project off the ground in 1995, the mod_info Apache module, and he can be blamed for the ANSI92 SQL-defying LIMIT clause in mSQL 1.x which has now, at least conceptually, crept into both MySQL and PostgreSQL.

Prior to joining Yahoo! as an infrastructure engineer in 2002, he was at a string of companies including Linuxcare, IBM, and Bell Canada working on internet technologies.

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Andy Lester

Senior Programmer, Follett Library Resources

Andy Lester has been aprofessional programmer for over twenty years and Perl evangelist for a decade. As one of the core Perl developers, Andy's interests in Perl focus on quality assurance. He maintains eight testing modules on the CPAN, as well as the Perl QA website. Andy is a frequent speaker at the O'Reilly Open Source Convention, YAPC, and at Perl Monger meetings around the country.

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Ted Leung

Senior Engineer, OSAF

Ted Leung Ted Leung is a Senior Engineer at the Open Source Applications Foundation (OSAF), where he is working on the Chandler Personal Information Manager. He is also using his experiences as a member of the Apache Software Foundation (ASF) to help OSAF bootstrap a vibrant community around Chandler. Ted continues his involvement with the ASF, where he is working to help new projects become a part of the Apache community. He was one of the original developers of the Xerces-J XML parser, and a founding member of the Apache XML Project. Prior to working at OSAF, he worked for several years as an independent consultant focusing on Java, XML, and web services. Other projects he has worked on include IBM's XML4J, Apple's Newton PDA, and on the compound document portion of Taligent's object-oriented frameworks. Ted is the author of Professional XML Development with Apache Tools, and has written several trade magazine articles and academic papers. You can find Ted's weblog at weblog.

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Adam Leventhal

Solaris Kernel Engineer, Sun Microsystems

Adam Leventhal is a Staff Engineer in Solaris Kernel Development. He is one of the three authors of DTrace for which Adam has received Sun's chairman's award for technical excellence in 2004, was named one of InfoWorld's Innovators of 2005, and won top honors from the 2006 Wall Street Journal's Innovation Awards. Adam has developed various debugging and post-mortem analysis facilities, and continues his work on user-land tracing to expand the breadth and depth of DTrace's view of the system. Adam joined the Sun after graduating cum laude from Brown University in 2001 with a degree in Math and Computer Science.

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Howard Lewis Ship

Independent Software Consultant, Tapestry World Domination, Inc.

Howard Lewis Ship Howard Lewis Ship is the creator and lead developer for the Apache Tapestry project. He cut his teeth writing customer support software for Stratus Computer, but eventually traded PL/1 for Objective-C and NeXTSTEP before settling into Java.

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Thomas Limoncelli

System Administrator, Google

Thomas Limoncelli Author of O'Reilly's Time Management for System Administrators and co-author of The Practice of System and Network Administration from Addison-Wesley (second edition just released). Tom is an internationally recognized speaker on system administration and time management. He received the SAGE 2005 Outstanding Achievement award. A sysadmin and network wonk since 1987, he has worked at small and large companies, and currently works at Google's NYC office.

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Van Lindberg

Haynes and Boone, LLP

Van Lindberg practices intellectual property law at Haynes and Boone, where he focuses on patent, trademark, and copyright law. Before joining Haynes and Boone, Van was a research and development engineer at a multinational IP (Internet Protocol) services provider, where he built large-scale distributed systems (mostly in Python).

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Luke Lonergan

CTO and Co-founder, Greenplum

Luke Lonergan Luke is the CTO and co-founder at San Mateo, California based Greenplum, where he founded the Bizgres open source project. At Greenplum he developed Bizgres MPP, parallel database software RDBMS capable of scaling to Petabytes. Prior to Greenplum, Luke founded the Linux Supercomputing practice at HPTi and was responsible for a number of world record supercomputers including the $15M Forecast Systems Labs machine that was #5 on the top 500 supercomputers list in 1999. Luke holds an MS from Stanford University.

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Gary Long

SVP for Product Development, EnterpriseDB Corp.

Prior to joining EnterpriseDB, Gary Long was a vice president at Gartner, Inc., where he specialized in software architecture, middleware and strategic IT planning. He has more than 25 years of experience as a manager and executive in the software products and services industry at Magna Software, Fairfax Software, AMS, L&L Software and Computer Associates. As an independent technology investor and entrepreneur he was a founding board member at EnterpriseDB, webMethods, and other software companies. Gary earned his Bachelor’s degree in Mathematics and Physics at Kent State University.

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Rusty Lynch

Rusty Lynch is the lead Linux software architect for Intel's Open Source Technology Center's embedded/mobile Linux team. Rusty has worked on a wide variety of Open Source technologies in his eleven years with Intel, with work ranging from the Linux kernel to the Mozilla web browser.

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Rachael Madsen

I am a software engineer and mathematician with experience in compiler construction, database design, and system architecture. I have worked on systems ranging from Univac 1108 mainframes to PC's. I am currently working independently on an application that combines several areas of advanced mathematics.

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Alex Martelli

Uber Technical Lead, Google, Inc.

Alex Martelli Alex Martelli is Uber Technical Lead at Google, Inc. Martelli holds a laurea in Ingegneria Elettronica from Bologna University. He wrote Python in a Nutshell, and also co-edited the Python Cookbook. He's a member of the Python Software Foundation, and won the 2002 Activators' Choice Award. Martelli spent 8 years with IBM Research, earning three Outstanding Technical Achievement Awards; twelve as senior consultant (Win32, Fortran, C, C++, Java, etc), think3 inc; and three as a Python freelance consultant, mostly for AB Strakt. He has taught Programming, Numerical Computing, and OO Design at Ferrara University and other venues.

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David Maxwell

Open Source Strategist, Coverity

David Maxwell

David Maxwell is Coverity's Open Source Strategist, and is tasked with the continuation and expansion of Coverity's DHS-sponsored open source scans. An open source security specialist, Maxwell has over 20 years of experience as an open source user and developer, and he is particularly active in the NetBSD community. He currently sits on the advisory board for the BSD Certification Group and the program committee for the annual BSDCan conference.

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Emma McGrattan

SVP Engineering, Ingres Corporation

Emma McGrattan Miss Emma McGrattan is responsible for the development and integration of the Ingres database and associated products and technologies. A leading authority in DBMS technologies, Miss McGrattan had been instrumental in the ongoing success of the Ingres product line. Miss McGrattan joined Ingres as senior vice president of Engineering from CA where she held a similar position responsible for the Ingres family of relational database management products.

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Fred McLain

Speaker biography coming soon.

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Paul McMahan

Software Developer, IBM Corporation

Paul McMahan began his career as a software engineer in 1996 at the University of Tennessee's Innovative Computing Laboratory. Working in the academic research community led him to become an avid user of the open source software now commonly referred to as LAMP. Paul joined IBM in 2000 to become more involved in the advancement and widespread adoption of open source software such as Linux and Apache HTTP. He became a code committer at the Apache Software Foundation in 2006 and currently devotes most of his time to participating in the Apache Geronimo, MyFaces, and Tomcat projects.

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David Mertz

CTO, Open Voting Consortium

David Mertz Dr. Mertz is a board member and CTO of the Open Voting Consortium and serves on IEEE Standards Committee P1622 on data formats for voting systems. After receiving his doctorate in political philosophy, David became a well-known author in the seemingly little related areas of computer science and programming, and in information security. He feels that procedural democracy requires that the technical instruments of governance be open for public inspection, every bit as much as it requires the legal acts of government remain so open.

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Patrick Michaud


Patrick Michaud is the pumpking for the Perl 6 compiler. He holds a Ph.D. in Computer Science and was formerly a Professor of Computer Science at Texas A&M University-Corpus Christi. He is currently a software developer and consultant focused on open source development and applications, including Perl, PmWiki, and Linux.

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Mårten Mickos


Mårten Mickos Mårten Mickos, CEO of MySQL, brings a strong track record of leadership in global high-tech companies to MySQL AB. Prior to joining MySQL in 2001, Mickos was CEO at MatchON Sports, which he grew to become the twenty-fourth “hottest e-business” in Europe within nine months of its inception. Previously, Mickos was CEO at Intellitel Communications, where he was instrumental in transitioning the company from a development lab to a commercial software vendor. He has also directed worldwide sales efforts at several technology companies.

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Jeremie Miller

Search Wikia Labs

Jeremie Miller Jeremie Miller is the founder of the Jabber project, having created the XMPP protocol and written the first Jabber server. He is now working on tearing down the walls of Search and establishing an open source foundation complimented with a distributed open protocol for search.

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Timothy Miller

Founder, Open Graphics Project

Timothy Miller is the founder of the Open Graphics Project and president of Traversal Technology, LLC. He is an experienced developer of graphics hardware and drivers. Tim is currently working on a Ph.D. in Computer Science at The Ohio State University, specializing in AI, Linguistics, and Cognitive Engineering.

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Sam Minnee

Development Director, SilverStripe

Sam has helped lead New Zealand based software development company SilverStripe for the last 7 years. He is responsible for the leading the development of the CMS and web framework of the same name, and has been heavily involved in dozens of sizes using this technology.

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Tatsuhiko Miyagawa

Software Engineer, Six Apart

Tatsuhiko Miyagawa Tatsuhiko Miyagawa is a Perl hacker from Tokyo, Japan. In 2005 he started working in San Francisco for Six Apart, a blogging company. Usually he codes lots of the server-side stuff for Six Apart products, ranging from mobile optimization and Atom publishing protocol to Ajax integration with UI engineers.

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Eben Moglen

Director, Software Freedom Law Center

Professor of Law and Legal History at Columbia University Law School and General Counsel of the Free Software Foundation. In addition to FSF, Professor Moglen has represented many of the world's leading free software developers. Professor Moglen earned his PhD in History and law degree at Yale University during what he sometimes calls his “long, dark period” in New Haven. After law school he clerked for Judge Edward Weinfeld of the United States District Court in New York City and to Justice Thurgood Marshall of the United States Supreme Court. He has taught at Columbia Law School – and has held visiting appointments at Harvard University, Tel Aviv University and the University of Virginia – since 1987. In 2003 he was given the Electronic Frontier Foundation's Pioneer Award for efforts on behalf of freedom in the electronic society.

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Marcel Molina Jr.

Developer, Rails Core

Marcel Molina Marcel Molina Jr. is a language enthusiast who went from being a literature major to a programmer. In his transition from natural language to machine language he found Ruby an elegant balance of dynamic, pragmatic and “humane�. And then came along Rails…. Marcel tumblelogs on Projectionist and tries to help keep your apps running smoothly as a developer at FiveRuns.

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Mike Morgan

Manager of Web Development, Mozilla Corporation

Mike Morgan is the manager of web development for the Mozilla Corporation. Mike joined the Mozilla community in 2003 and has worked on Mozilla's mirror management software, update system and Mike currently works on improvements to Mozilla's update system, build automation and an open source crash reporting tool for Mozilla products. He is also responsible for project management, recruiting and hiring for the web team. Before his job at Mozilla, Mike worked at the Oregon State University Open Source Lab as an enterprise developer. There he contributed to the Kuali project while volunteering for Mozilla in his free time.

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Ian Murdock

Chief OS Platform Strategist, Sun Microsystems

Ian Murdock Ian Murdock is Chief OS Platform Strategist at Sun Microsystems and chair of the Linux Standard Base (LSB), the Linux platform interoperability standard. Prior to joining Sun, Ian was CTO of the Linux Foundation (formed through the merger of OSDL and the Free Standards Group, where he was CTO) and cofounder, chairman, and chief strategist of Progeny, a Linux distribution vendor that builds custom Linux platforms for companies building server appliances and other Linux powered products. A longtime Linux user, developer, and advocate, Ian founded the Debian project in 1993. Today, Debian is one of the most popular Linux distributions in the world, with millions of users worldwide. Debian is also widely considered one of the most successful and influential open source projects ever launched: More than 1,000 volunteers in all parts of the world are currently involved in Debian development, and the founding document of the open source movement itself (the Open Source Definition) was originally a Debian position statement. Ian was also a founding director of Linux International (1993-1995) and the Open Source Initiative (1998-2001). Ian holds a B.S. in Computer Science from Purdue University.

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Rob Napier


Rob Napier Since 1967, Rob has worked in hardware and software engineering, marketing, consulting and application development. As CEO of once:technololgies, he leads a team of designers in Australia and Europe who created the once:radix platform. With it, they build Business Process Management applications for organizations in Asia, Australia, Europe and North America. With once:radix built heavily on open source technology, Rob sees its open source release as an opportunity to give something back to the community that has enabled his company to grow.

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Johnathan Nightingale

Human Shield, Mozilla Corporation

Jonathan Nightingale Johnathan Nightingale is Mozilla Corporation's Human Shield. Educated in cognitive science and artificial intelligence, now working on security, usability and coding for Firefox, Johnathan can usually be found occupying the centre of a Venn diagram. He has written for Dr. Dobb's Journal about software integration, and for O'Reilly's Make: magazine about making tea. He lives just outside Toronto, Canada, in a house that needs more room for books.

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Clinton Nixon

Software developer, Lulu Enterprises

Clinton R. Nixon is a senior software developer at He is an evangelist for software quality and testing and likes to quote Kent Beck at co-workers. While he enjoys programming in almost all languages, he thinks JavaScript is under-rated. He is also a game developer and enthusiast.

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Terry Nolen

Senior Principal Software Architect, Sabre Airline Solutions

When he's not dabbling in RoR, Terry Nolen is Senior Principal Software Architect for Sabre Holdings where he is a co-founder of a corporate wide community development platform, and is the Database Architect for the Sabre Airline Solutions Division. With almost 25 years of IT experience, Terry understands that at one time all technology was bleeding edge.

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Kevin Noreen

Kevin Noreen Kevin Noreen is the Senior Manager for Dell’s HPCC, Linux, and Virtualization Global Alliance Team. His team is responsible for working with Dell’s partners in delivering jointly developed products, strategies and marketing offerings. Prior to this role, he was the Senior Product Marketing Strategist for Clustering at Dell Inc. He has been with Dell Enterprise System Group since 1998 where his responsibilities at Dell included managing both Dell's High Availability and High Performance Cluster Computing programs targeted at the Windows and Linux market.

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Tim O'Reilly

Founder and CEO, O'Reilly Media, Inc.

Tim O’Reilly Tim O'Reilly is founder and CEO of O'Reilly Media, Inc., thought by many to be the best computer book publisher in the world. In addition to publishing pioneering books like Ed Krol's The Whole Internet User's Guide & Catalog (selected by the New York Public Library as one of the most significant books of the twentieth century), O'Reilly has also been a pioneer in the popularization of the Internet. O'Reilly's Global Network Navigator site (GNN, which was sold to America Online in September 1995) was the first Web portal and the first true commercial site on the World Wide Web.

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Vik Olliver

The RepRap Project

Vik Olliver Vik Olliver is a longhair software writer and replicator developer from New Zealand's Waitakere rainforest. Born in the UK, he emigrated to NZ in 1994 with his wife Suz and daughters Kate & Tamara. He has worked on projects ranging from implantable heart monitors to launching satellites, and from urban self-sufficiency to hydroponics in moonrock. He has also done enough journalism to get the shakes if he doesn't write articles occasionally, but could give it up any time he likes. He has done so many times.

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Andy Oram

Editor, O'Reilly Media, Inc.

Andy Oram Andy Oram works as an editor for O'Reilly Media, specializing in books and content on Linux and free software. Some of the better-known books he has edited include Running Linux, Linux Device Drivers, and Mastering Regular Expressions. He is also a member of Computer Professionals for Social Responsibility

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Steve Oualline

Speaker biography coming soon.

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Michael Owens

Michel Owens has worked with SQLite since its inception in 2005. He has written various articles on SQLite in the Linux Journal and the C/C++ User's Journal. He is the author the "The Definitive Guide to SQLite."

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Jonathan Oxer

Technical Director, Internet Vision Technologies

Jonathan Oxer is founder of Internet Vision Technologies, one of the oldest and most successful web application development companies in Australia; author of "How To Build A Website And Stay Sane" (Oft Press, 2004) and "Ubuntu Hacks" (O'Reilly, 2006). He is president of Linux Australia, ran the last 5 Debian Miniconferences, and sits on various boards and advisory panels for groups including Swinburne University and the federal e-Research Coordinating Committee.

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Evanndro Paes dos Reis

CTO, Arvos do Brasil Ltda.

Evanndro Paes dos Reis Evanndro Reis is an experienced software entrepreneur and executive currently dedicated to the development of arvos, a company specialized in the creation of open source applications for small and medium businesses. He holds a MBA degree from Duke University (Fuqua School of Business, 2003) and a BSc degree in Computer Science from Universidade Católica de Santos (1991).

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Joyce Park


Joyce Park is CTO of invite site, a founding member of Team Dojo, and tech lead of

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David Percy

Geospatial Data Manager, Portland State University

David Percy David Percy has been the Geospatial Data Manager for Portland State University’s Geology Department since 1998. Before that, he spent 15 years as a database manager and programmer in the field of medical research. He retrained as a geologist in order to use his skills in the field of Earth Science. Since 1999 he has taught technology courses related to GIS, including GIS for the Natural Sciences, GIS Programming and Web GIS at the university.

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Michael Peters

Developer, Plus Three, LP

Michael is a Perl/mod_perl developer living in the Washington, DC suburbs and working for Plus Three, LP ( Most of his work involves building communication and fundraising tools used by political and non-profit groups througout the US.

One of his main responsibilities at Plus Three is to build and maintain our testing tools and infrastructure that we use on our core products. He is also the primary developer of Smolder.

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Stormy Peters

Director of Community and Partner Programs, OpenLogic

Stormy Peters Stormy Peters joins OpenLogic from Hewlett-Packard (HP) where she founded and managed the Open Source Program Office. As an early adopter of open source, Stormy was responsible for HP’s open source strategy, policy and business practices. She was also a founding member of HP’s Linux Division. Stormy is a frequent keynote speaker on business aspects of Open Source Software at major conferences such as the Open Source Business Conference and the O'Reilly conferences. She has addressed the United Nations, European Union and various U.S. state governments on open source software.

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Simon Peyton-Jones


Simon Peyton-Jones Simon Peyton Jones, MA, MBCS, CEng, graduated from Trinity College Cambridge in 1980. After two years in industry, he spent seven years as a lecturer at University College London, and nine years as a professor at Glasgow University, before moving to Microsoft Research (Cambridge) in 1998. His main research interest is in functional programming languages, their implementation, and their application. He has led a succession of research projects focused around the design and implementation of production-quality functional-language systems for both uniprocessors and parallel machines.

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Jon Phillips

Community Developer, Creative Commons

Jon Phillips ( is an Open Source developer, artist, writer, educator, lecturer, and curator with 13+ years of experience creating communities and computing culture. His involvements with mixing culture and software development have been presented internationally at Guangzhou Academy of Fine Arts (2006), Sun Yat-Sen University (2006, Desktop Developers Conference (2005), SFMoMA (2004), University of Tokyo (2004), Korea Advanced Institute for Science and Technology (2004), UCLA Hammer Museum’s Digital Storytelling Conference, UC-Berkeley’s 040404 Conference (2004), USC Aim Festival IV (2003), and the ICA London (2002).

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Lisa Phillips

Six Apart

Speaker biography coming soon.

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Jay Pipes

Community Relations Manager, North America, MySQL AB

Jay Pipes Jay is the North American Community Relations Manager at MySQL. Author of "Pro MySQL" (Apress, 2005), Jay has also written articles for Linux Magazine and regularly assists software developers in identifying how to make the most effective use of MySQL. He has given sessions on performance tuning at the MySQL Users Conference, RedHat Summit, NY PHP Conference, OSCON and Ohio LinuxFest, among others.In his abundant free time, when not being pestered by his two needy cats and two noisy dogs, he daydreams in PHP code and ponders the ramifications of __clone().

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Mike Pittaro

Co-founder and Chief Community Officer,

Mike Pittaro Mike Pittaro started the SnapLogic project in 2005 with the goal of simplifying data integration with a fundamentally new approach. Mike has worked in the data analysis and data integration space for the past 12 years. He built his first financial data mart in 1996, and later worked on pool selection analysis for the asset-backed securitization industry.

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Mark Pruett

Systems Architect, Dominion Virginia Power

Mark Pruett works for a large energy company, where his group has developed mission critical systems with open source software since 1994. Mark's writing has appeared in C Users Journal, Linux Journal, Ladies Home Journal and Sysadmin Magazine (one of which he's lying about). He contributed to O'Reilly's "Ajax Hacks" and wrote the O'Reilly Short Cut "Ajax and Web Services".

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Eric Pugh

Principal, OpenSource Connections

Eric Pugh has been heavily involved in open source development for the past three years. He is one of the founders for OpenSourceConnections, a consultancy focusing on mentoring development teams who wish to integrate open source tools successfully.

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Aaron Racicot

GIS Programmer, Ecotrust

Aaron Racicot Aaron Racicot is a GIS programmer at Ecotrust ( His interests include the development and utilization of Open Source GIS Tools in the areas of environmental and conservation related projects. Aaron completed his undergraduate work in Computer Science at the University of Washington (UW-1996) and received a Masters in Environmental Science from Oregon Health and Science University (OHSU-2005). Specific areas of active development include the integration of server and web based GIS systems into real-time decision support tools, integrated data management systems, and modeling frameworks that utilize the power of GIS.

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Matt Raible

Open Source Evangelist, Raible Designs, Inc.

Matt Raible currently resides in Denver, CO where he is a Spring and Web Frameworks Practice Leader for Virtuas, an open source consultancy. Raible has been surrounded by computers for most of his life, even though he grew up in the backwoods of Montana without electricity. Matt is an author (Spring Live, Pro JSP), active Java open-source contributor and blogger on

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Vani Raja

Vani Raja has been developing websites for over 9 years, with experience in Perl, Ruby and too many templating languages to count. In recent years, she's been wrangling user interfaces with CSS and XHTML for all manner of businesses. She occupies a small house in Hollywood, CA with two cats, one dog and a spouse-unit.

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Nandini Ramani

Co-Chair, W3C SVG Working Group, Sun Microsystems

Nandini Ramani Nandini Ramani is the Community Leader for openjfx and was actively involved in launching JavaFX in May 2007. She is involved in the development of XML based standards, as Co-Chair of the W3C Scalable Vector Graphics working group and as amember of the W3C Compound Document Formats working group. She is also a member of several graphics and UI related expert groups in the JCP. Prior to joining the CTO office, Nandini worked in the Graphics and Media team in the JavaME group and hardware Architecture and Simulation team in the Accelerated Graphics group.

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Lino Ramirez

Sessional Professor, The King's University College

Lino Ramirez Lino is a Ph.D. Candidate at the University of Alberta, Canada. He is the author of 14 scientific papers and more than 20 presentations covering a broad range of topics related to knowledge discovery. Some specific topics include: image analysis, data analysis, pattern recognition, and machine learning. He has contributed tests, examples, and new functionalities to the Insight Segmentation and Registration Toolkit (ITK, ITK is an open-source software system for medical image processing. Lino is a frequent contributor to the PerlMonks community, in particular, in the area of scientific programming.

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Sam Ramji

Director, Open Source Software Lab, Microsoft

Sam Ramji Sam directs the Open Source Software Lab at Microsoft doing primary research on various open source projects, and driving interoperability between Microsoft and key open source technologies. He leads Open Source Technology Strategy, including engaging with commercial Open Source companies like Novell, JBoss, Zend and SugarCRM, to help Microsoft advance our support for and understanding of the open source development, community, and marketing models.

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Mark Ramm

Software Developer, Optio Software

Mark Ramm is the author of "Rapid Web Applications with TurboGears," and a senior software developer at Optio Software. His focus is on developing highly interactive web sites, that are easy to develop, extend, and maintain.

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Allison Randal

Conference Chair, O'Reilly Media, Inc.

Allison Randal Allison Randal is co-chair of O'Reilly's Open Source Convention and Energy Innovation Conference. Her first geek career was as a research linguist in eastern Africa. But eventually her love of coding drew her away from natural languages to artificial ones. Allison is the architect of Parrot, on the board of directors of The Perl Foundation, and founder and president of Onyx Neon. She co-authored Perl 6 and Parrot Essentials, and has edited various O'Reilly books on dynamic languages including Perl Hacks and Programming PHP.

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Michael Rash

Security Architect, Enterasys Networks, Inc.

Michael Rash holds a Master's Degree in applied mathematics with a concentration in computer security from the University of Maryland. Mr. Rash is the founder of, a website dedicated to open source security software, and is a Security Architect for the Dragon Intrusion Detection System developed by Enterasys Networks.

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Craig E. Rasmussen

Los Alamos National Laboratory

Craig Rasmussen is a computational scientist working with the runtime team in the Advanced Computing Laboratory within the Los Alamos National Laboratory. His interests include designing and building applications using distributed objects and parallel component technologies and in seeking ways to bring the power of C++ to nonprofessional programmers using simple, flexible, and dynamic languages such as Perl and Python.

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David Recordon

Open Platforms Tech Lead, Six Apart

David Recordon David Recordon works for VeriSign within their David Recordon is Open Platforms Tech Lead for Six Apart, the largest independent blogging company in the world. Recordon has played a pivotal role in the development and popularization of key social media technologies such as OpenID. In 2005, Recordon collaborated with Brad Fitzpatrick in the original development of OpenID, which has since become the most popular decentralized single-sign-on protocol in the history of the web.

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Robert Reed


Speaker biography coming soon.

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Frank Rego


Speaker biography coming soon.

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Patrick Reilly

Senior Developer, OmniTI Computer Consulting

Patrick Reilly, Architect of the Open Source Platforms Group for Schematic, where he designs and implements scalable solutions for highly trafficked sites such as “The Official Spider-Man motion picture web property” and "Gaia Interactive." Patrick is an author and maintainer of several open-source and closed-source software products and is a member of the PHP development team. Patrick is also a speaker at various open source conferences such as LISA and Recent Changes 2007.

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James Reinders

Director, Intel Corporation

James Reinders James is a senior engineer who joined Intel Corporation in 1989 and has contributed to projects including the world's first TeraFLOP supercomputer (ASCI Red), compilers and architecture work for a number of Intel processors and parallel systems. James Reinders is now the director of business development and chief evangelist for Intel's Software Development Products. Reinders also is the editorial columnist for the monthly "The Gauntlet" at, the author of the Intel Press book titled "VTune Performance Analyzer Essentials" and contributor to the new book "Multi-Core Programming."

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Mark Reinhold

Java SE Chief Engineer, Sun Microsystems

Mark Reinhold is the Chief Engineer for the Java™ Platform, Standard Edition, at Sun Microsystems, where he has been deeply involved in the development of the Java platform for over ten years and is currently leading the engineering team for the OpenJDK project. Mark holds a Ph.D. in Computer Science from the Massachusetts Institute of Technology.

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Robert Richards

Development Manager, Local Thunder

Robert Richards is the IT Development Manager for Local Thunder in Portland, Maine. He also is one of the authors of a number of the XML extensions in PHP, a contributer to the libxml2 library, and author of Pro PHP XML and Web Services.

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Jared Richardson


Jared Richardson is a co-author of the Pragmatic Bookshelf title "Ship it! A Practical Guide to Successful Software Projects". He works as a consultant and is enjoying learning Rails and trying to keep up with the community. He pays the bills coding, writing, and speaking.

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Philip Robb

Engineering Section Manager, Open Source & Linux, Hewlett Packard

Phil Robb is an Engineering Section Manager in the Open Source & Linux Organization of Hewlett Packard. In this role Phil leads several product development teams focused on Open Source Solutions and Open Source Governance. Phil also manages HP's Open Source Review Board which is the governing body within HP for all open source software usage and deployment.

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John Roberts

Co-Founder and CEO, SugarCRM

John Roberts John Roberts, CEO and Co-Founder of SugarCRM, is a pioneer in the commercial open source enterprise application space. With 14 years experience in enterprise CRM applications, John co-developed Sugar Open Source and introduced open source as a viable contender to established proprietary CRM solutions.

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Mikeal Rogers

QA Development Engineer, Open Source Applications Foundation

Mikeal Rogers works in QA developing tools and frameworks at the Open Source Applications Foundation. He is a developer and co-creator of Project Windmill. At OSAF Mikeal is also active in the Chandler and Cosmo projects and is the primary representative to CalConnect. Mikeal is an avid python developer.

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Philip Rosedale

Founder, Linden Lab/Second Life

Philip Rosedale Philip Rosedale is the founder and CEO of Linden Lab, producer of the acclaimed 3D digital world Second Life. Rosedale has an extensive background in the development and pioneering of streaming technology, having built his first computer in 4th grade, and started his first computer software company while still in high school. In 1995 he developed FreeVue, a low-bitrate video conferencing system for Internet-connected PCs, resulting in the acquisition of his company in early 1996 by RealNetworks. For three and a half years, Rosedale served as Vice President and CTO at RealNetworks, where he was responsible for the development and launch of RealVideo, RealSystem 5.0, and RealSystem G2. In 1999, Rosedale returned to San Francisco, joined Accel Partners as an entrepreneur-in-residence, and began the basic research that would become the technology behind Linden Lab. Rosedale holds a B.S. degree in Physics from the University of California at San Diego.

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John Rowell

CTO, OpSource

John Rowell Over the past decade, Mr. Rowell has held senior management positions with leading hosting, telecommunications, and Internet services companies. He has extensive experience building, operating, and managing complex global IT infrastructure systems that are able to scale to meet dynamic business requirements. Prior to co-founding OpSource, Mr. Rowell led a team of over 500 people as Vice President of Operations for Metromedia Fiber Network (MFN).

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Alex Russell

Project Lead, SitePen

Alex Russell Alex Russell is project lead for the Dojo Toolkit and director of R&D for SitePen, a consulting firm specializing in responsive web applications and the open source tools that enable them. He also serves as president of the Dojo Foundation, an organization that supports development of several high-quality open source JavaScript projects and distributes them under liberal terms.

Before joining SitePen, Russell was a senior engineer at JotSpot and Informatica where he helped both companies build highly interactive web interfaces. His earlier open source involvement included stints as editor of the OWASP Guide to Building Secure Web Applications and primary author of the netWindows DHTML toolkit.

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Peter Saint-Andre

Executive Director, XMPP Standards Foundation

Peter Saint-Andre Peter Saint-Andre is Executive Director of the XMPP Standards Foundation (XSF), Director of Standards at Jabber Inc., editor of the XMPP RFCs, and author of numerous XMPP protocol extensions.

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George Schlossnagle

VP of Engineering, OmniTI Computer Consulting, Inc.

George Schlossnagle George Schlossnagle runs engineering at the MessageSystems division of OmniTI, where he builds high performance messaging products. He's been known to contribute to PHP occasionally, and write the occasional book.

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Theo Schlossnagle

Chief Technology Officer, OmniTI Computer Consulting, Inc.

Theo Schlossnagle Theo Schlossnagle is a Founder and Principal at OmniTI where he designs and implements scalable solutions for highly trafficked sites and other clients in need of sound, scalable architectural engineering. He is the architect of the highly scalable Ecelerity mail transport agent. Theo is a participant in various open source communities including OpenSolaris, Linux, Apache, PostgreSQL, perl, and many others. He is an author in the area of scalability and distributed systems as well as a veteran speaker in the open source conference circuit.

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Ean Schuessler

CTO, Brainfood Media Systems

Speaker biography coming soon.

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Michael G. Schwern

Michael G Schwern has authored and maintained more Perl modules than he can remember, and some we'd all like to forget. Test::More, Test::Inline, Exporter::Lite, Class::DBI, Class::Accessor and are some of his creations while ExtUtils::MakeMaker and Test::Harness are under his maintenance. Due to clerical oversight, Michael is the Perl 1 Pumpkin King.

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Peter Scott

Owner, Pacific Systems Design Technologies

Peter Scott Peter Scott is the author of Perl Medic (Addison-Wesley, 2004) and Perl Debugged (Addison-Wesley, 2001). Scott has worked in software development since 1981. A graduate of Cambridge University, he runs a business teaching Perl and designing enterprise infrastructures. He has taught at OSCON, YAPC, and on the Perl Whirl.

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Matt Secoske

Consultant, Object Partners

Matt Secoske is a consultant living in Omaha, Ne, focused on creating better software. He is the leader of the Omaha Java Users Group, and is a frequent speaker on Java and dynamic language technologies in the Omaha area. He has spoken previously at OSCON, as well as the NoFluffJustStuff conference series.

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Toby Segaran

Director of Software Development, Genstruct

Toby Segaran is the author of an upcoming O'Reilly book on Collective Intelligence and the Director of Software Development at Genstruct, a biotechnology company. He loves applying machine-learning and data-mining algorithms to everything ranging from pharmaceutical trials to the Technorati Top 100. He is also the creator of the free web applications Tasktoy and Lazybase.

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Rolla Selbak

Intel Corp

Rolla Selbak is a senior Linux software engineer at Intel, specializing in Ubuntu/Intel enabling. She spearheaded the open Posix Test Suite project, and most recently, is leading development and validation for the open Linux-ready Firmware Development Kit. In her spare time, she enjoys filmmaking and rock-climbing.

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Sarah Sharp

Portland State University

Sarah Bailey wears many hats. She's a Computer Engineering student at Portland State University, the President of PSU's amateur rocketry club, and has been hacking on USB for the past two years. Most recently, she has been involved with rewriting the USB filesystem in the Linux kernel.

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Mike Shaver

Director of Ecosystem Development, Mozilla Corporation

Mike Shaver Mike Shaver is a co-founder of the Mozilla project, and leads the Mozilla Corporation's work to support the developer ecosystem that has grown up around Firefox and Mozilla technologies. A veteran of open source development, Mike has worked on code at virtually every level of the open source application stack, ranging from the Linux kernel and Lustre clustered filesystem to Mozilla's Gecko layout engine and even, when he was younger and didn't know better, some CORBA infrastructure.

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Chris Shiflett

Principal, OmniTI Computer Consulting, Inc.

Chris Shiflet

Chris Shiflett is a principal of OmniTI, where he leads the web application security practice.

Shiflett is a leader in the PHP community - a popular speaker at industry conferences worldwide, the founder of the PHP Security Consortium, a contributor to the Zend Framework, and an author of the Zend PHP Certification.

A prolific writer, Shiflett is the author of the critically-acclaimed Essential PHP Security (O'Reilly) and HTTP Developer's Handbook (Sams). His writing has also appeared in numerous articles for php|architect and PHP Magazine, as well as a number of other popular books including Programming PHP (O'Reilly) and PHP Cookbook (O'Reilly).

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Mark Shuttleworth

Founder, Ubuntu/Canonical Ltd.

Mark Shuttleworth Mark Shuttleworth studied finance and information technology at the University of Cape Town, and went on to found Thawte, a company specializing in digital certificates and internet privacy. He sold Thawte to the U.S. company VeriSign in 1999, and founded HBD Venture Capital and The Shuttleworth Foundation. He moved to London in 2001, and began preparing for the First African in Space mission, training in Star City and Khazakstan. In April 2002 Shuttleworth flew in space as a cosmonaut member of the crew of Soyuz Mission TM34 to the International Space Station. In early 2004 he founded the Ubuntu project, which aims to produce a free, high quality desktop OS for everyone.

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Rolf Skyberg

Disruptive Innovator, eBay, Inc.

Rolf Skyberg As Disruptive Innovator at eBay, Rolf Skyberg investigates the creation of engaging buyer experiences. While at eBay he has focused on inspiring new ways of approaching problems and exploring them from a holistic viewpoint. His particular interests include forming socio-retail spaces and leveraging adopted technology to reduce buyer frictions. Rolf has a BS in Information Systems and Quantitative Analysis with additional studies in System Science. He has worked in technology since before the first bust and hopes to continue thinking up great ideas through the second boom.

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Andy Slocum

Andy Slocum also lives in Chicago has been with ThoughtWorks for seven years, where he is an architect for a large leasing system. He has spent time in India, working on distributed projects with ThoughtWorks' Bangalore office. He enjoys baking bread, brewing and performance optimization. He is also an avid turophile with his wife, Samantha.

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Joseph Smarr

Architect, Plaxo, Inc.

Joseph Smarr Joseph Smarr is Chief Platform Architect at Plaxo. He is currently leading Plaxo’s “Open Social Web” initiative to put users back in control of who they know when using socially-enabled sites by using open data-sharing standards. An active participant in the Web 2.0 community, Joseph has built web applications for many years, including Plaxo’s online address book, web widgets, and was architect and lead developer of the Plaxo 3.0 rich AJAX address book, calendar, and sync tool. Joseph has a BS and MS from Stanford University in Artificial Intelligence.

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Ray Smith

Staff Software Engineer, Google Inc

Ray is one of the world's leading experts in Optical Character Recognition. Ray worked on OCR at HP Labs for 10 years, and then at HP's scanner division, followed by 7 years at Caere/Scansoft/Nuance leading the design of the Omnipage OCR engine. Ray is now with Google.

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Mike Solomon


Mike Solomon is a computer wrangler for YouTube. He spends his time fighting scalability and efficiency issues across the site. Mike prefers Python these days, but dabbles in C/C++ when he feels the need for speed.

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Steve Souders


Steve Souders works at Yahoo! as the Chief Performance Yahoo!. Prior to that he ran the development team for My Yahoo!. He's been at Yahoo! since 2000 working on many of the platforms and products within the company. His work tackling the scalability challenges of Yahoo!'s large number of users and page views groomed him for his current role. As Chief Performance Yahoo! he has developed a set of best practices for making web sites faster. He builds tools for performance analysis and evangelizes these best practices and tools across Yahoo!'s product teams. He's currently writing a book about his work for O'Reilly Media called High Performance Web Pages that will be available in 2007.

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Bruno Souza

NetBeans Community Manager, Sun Microsystems

Bruno F. Souza is the number one Java Evangelist in Brazil, responsible for hundreds of Java presentations throughout the country and internationally. As a Java consultant, Bruno participated in some of the largest Java projects in Brazil. As founder and coordinator of SouJava (the Java Users Society) and working with many other JUGs, Bruno helped drive the growth of the Brazilian Java community. Board Member of the Open Source Initiative, Bruno helped unite the Brazilian Java and Open Source communities. Bruno works now at Sun Microsystems, where he is Community Manager of NetBeans, Sun's Open Source IDE.

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Wyatt Spear

Speaker biography coming soon.

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Gregg Sporar

Technology Evangelist, Sun Microsystems

Gregg Sporar has been a software developer for over twenty years, working on projects ranging from control software for a burglar alarm to 3D graphical user interfaces. His interests include user interfaces, development tools, and performance profiling. He has spoken at conferences around the world and works for Sun Microsystems as a Technology Evangelist on the open source NetBeans project.

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Greg Stein

Uber Tech Lead/Manager, Google

Greg Stein is an engineer at Google, working on their open source efforts.

Prior to that, Stein was a director of engineering at CollabNet where he managed the Subversion project and releases of their SourceCast product. He also worked at Microsoft as a development manager, in the Commerce Server and Site Server groups. Stein was a co-founder and the corporate technologist of eShop, one of the first electronic commerce software companies, before its acquisition by Microsoft.

In Stein's spare time, he works on many open source projects, such as Subversion, WebDAV, and Python. He also spends time with Apache projects and is the current chairman of the Apache Software Foundation.

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Zeev Suraski

Zeev Suraski is a co-founder of Zend Technologies and leading contributor of PHP. Zeev spearheaded the PHP 4 project, and developed some of the principal extensions of PHP. Today Zeev leads the definition of Zend's commercial products, and works with key customers on large scale and advanced PHP-based deployments.

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Scott Switzer

Speaker biography coming soon.

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Zak Tamsen

Speaker biography coming soon.

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Laura Thomson

Mozilla Corporation

Laura Thomson. Laura Thomson is a Principal at OmniTI, a consultancy specializing in scalable internet systems design and development. Laura came to OmniTI from Australia, bringing more than ten years experience in web development, IT consulting, and research. She is the co-author of the best-selling "PHP and MySQL Web Development" (Sams Publishing) and "MySQL Tutorial" (MySQL Press), and has spoken at many conferences worldwide.

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Beth Tibbitts

Senior Software Engineer, IBM Research

Beth R. Tibbitts is a Senior Software Engineer at IBM Research, developing Eclipse tools for High Performance Computing. She has a variety of software development experience in IBM, from APL and LISP to C++ and Java. Beth has worked on Expert Systems tools, debuggers, tools for teachers and training/evaluation of ADHD children, and for making web sites more accessible to persons with disabilities. She became a fan of Eclipse a few years ago and enjoys writing tools for programmers and users including tools for porting C and C++ programs to Linux, and now for parallel programmers in the Eclipse project Parallel Tools Platform (PTP).

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Michael Tiemann

Vice President, Open Source Affairs, RedHat, Inc.

Michael Tiemann

Michael Tiemann is a true open source software pioneer. His first major open source contributions included ports of and enhancements to GCC and GDB as well as the original authorship of the GNU C++ compiler, the world's first native-code C++ compiler. In 1989, Michael's technical successes and entreprenurial spirit led him to co-found Cygnus Solutions, the first company to provide commercial support for open source software. During his ten years at Cygnus, Michael contributed in a number of roles from President to hacker, helping to lead the company from a fledgling start-up to an admired open source leader.

Michael is now Red Hat's Vice President of Open Source Affairs. In this role, Michael integrates and informs technology and open source strategies for Red Hat and its strategic partners and customers in the public and private sectors. In addition to his responsibilities at Red Hat, Michael serves on a number of boards, including the Open Source Initiative (where he is also President), the project, and the GNOME Foundation. Michael also provides support to organizations that further the goals of software freedom, including the Free Software Foundation and the Electronic Frontier Foundation.

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Vadim Tkachenko

Performance Consultant,

Currently I work as independent MySQL performance consultant and I am co-author of

Before I was employed by MySQL Inc as Performance Engineer, working on MySQL Performance and Scalability issues. My primary tasks were benchmarks, profiling, finding bottlenecks. I'm an expert in multi threading programming and synchronization stuff.

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Nathan Torkington

Conference Chair, O'Reilly Media, Inc.

Nathan Torkington Nat Torkington lives and works in New Zealand where he consults on open source and startup strategies, writes for O'Reilly Radar, and co-chairs the Open Source Convention (OSCON).

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Phillip Torrone

Senior Editor, MAKE Magazine

Phillip Torrone Phillip Torrone is a New York City based author - he is currently the senior editor for MAKE Magazine and contributing editor to Popular Science. In his spare time he designs open source electronics and uses high powered laser beams.

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Robert Treat

DBA, PostgreSQL Community

Robert Treat Robert Treat works as a database architect at OmniTI and has been working with open source for almost a decade. A veteran industry speaker, Robert is co-author of the book Beginning PHP and PostgreSQL 8, maintains the phpPgAdmin software package, and has been recognized as a major contributor to the PostgreSQL project for his work over the years.

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Ben Trott

Co-founder and CTO, Six Apart, Ltd.

Ben Trott Ben Trott is co-founder and CTO of Six Apart, the leader in blogging software and services. Ben manages technical direction for the Six Apart team all over the world, having developed Movable Type with his co-founder and wife Mena G. Trott in 2001, led development of the TypePad hosted blogging service in 2003, and most recently spearheaded development of Six Apart’s new personal blogging service for friends and family, Vox. He lives in San Francisco with Mena and their dog Maddy.

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Matt Trout

Technical Director, Shadowcat Systems Limited

Matt S Trout is a pure mathematics graduate turned programmer, Technical Director of OSS consultancy Shadowcat Systems Limited, one of the core team members of the Catalyst web framework project and the founder and lead developer of the Object-Relational Mapping library DBIx::Class.

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Matt Tucker

Jive Software

Matt Tucker is co-founder and CTO of Jive Software, a provider of customer collaboration products. He is a lead developer on several open source XMPP projects: Jive Messenger (an XMPP server) and Smack (an XMPP client library).

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Kirby Urner

Partner, 4D Solutions

Kirby Urner Kirby Urner studied philsophy with some of the best in the business at Princeton University. He first contacted Fuller with a paper on general systems theory, based on experiences with his family in Cairo, Egypt. Later he become the first webmaster for the BFI (B. Fuller's Institute), snagging the domain name with help from Kiyoshi Kuromiya, Fuller's adjuvant. Today, he administers and, both domains having literary significance to students of Fuller's philosophy, an off-shoot of New England transcendentalism ala Emerson and Thoreau.

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Arjan van de Ven


Arjan is a software engineer at Intel's Open Source Technology Center where he mostly focuses on making sure Linux runs well on Intel hardware.

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Guido van Rossum

Language Architect, Creator of Python

Guido van Rossum Guido van Rossum is the creator of Python, one of the major programming languages on and off the web. The Python community refers to him as the BDFL (Benevolent Dictator For Life), a title straight from a Monty Python skit.

He moved from the Netherlands to the USA in 1995, where he met his wife. Until July 2003 they lived in the northern Virginia suburbs of Washington, DC with their son Orlijn, who was born in 2001. They then moved to Silicon Valley where Guido now works for Google (spending 50% of his time on Python!).

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Glenn Vanderburg

Independent Consultant

Glenn Vanderburg is an independent consultant focused on cutting-edge advanced development technologies and techniques, including Ruby, JavaScript, Ajax, and state-of-the-art development practices.

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Ken VanDine

Director of Management Engineering, rPath, Inc.

Ken VanDine Ken VanDine is an Engineering Lead at rPath, Inc. as well as the founder and project leader of the Foresight Linux Project, created in 2005. Ken's work with the Foresight Linux Project and Conary package manager eventually led Ken to being hired at rPath, based in Raleigh, N.C.

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David Verba

Director of Technology, Adaptive Path

David brings 15 years of development experience with both open source and more traditional technologies to Adaptive Path. In addition to the typical mix including Sun, Java, and Oracle he has many years of involvement with a variety of open source approaches including linux, perl, apache, mysql, postgres and now ruby and ruby on rails.

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Gopal Vijayaraghavan


Gopal Vijayaraghavan is a software engineer at Yahoo! and works in the platform engineering team. He is a lead developer of the open source PHP APC (alternative php cache) and dotgnu He hacks on APC as part of his work and otherwise. His blog can be found at

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Sam Vilain

Hacker, Catalyst IT (NZ) Ltd

Sam Vilain is a Perl programmer and Systems integrator working for Catalyst IT, New Zealand.

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Jesse Vincent

President, Best Practical Solutions LLC

Jesse Vincent Jesse Vincent is the author of RT and the founder of Best Practical Solutions, LLC, a company dedicated to open source tools to help people and organizations keep track of what needs doing, when it gets done, and who does it. Before founding Best Practical, Vincent worked as the systems lead for a now-defunct dotcom and as a software designer at Microsoft.

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Peter von der Ahé

javac Tech Lead, Sun Microsystems

Peter is the Java Compiler Tech Lead at Sun Microsystems and specification lead for the Java Compiler API (JSR 199). Peter holds a Master's Degree in Computer Science from the University of Aarhus, Denmark. Before joining Sun, Peter worked on a research project at the university that lead to the addition of wildcards to the Java programming language.

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Jimmy Wales

Chairman of the Board, Wikia, Inc

Jimmy Wales Jimmy "Jimbo" Donal Wales is an internet entrepreneur and founder of Wikipedia, the free encyclopedia. Wales is currently the president of the Wikimedia Foundation, a Tampa-based non-profit organization that encompasses Wikipedia and its younger sister projects. Wales's latest project is Wikia, which combines wiki social norms with search technology.

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Larry Wall

Writer, Author and Creator of Perl

Larry Wall Speaker biography coming soon.

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Brenda Wallace

Catalyst IT

Brenda writes and uses opensource code for telcos. She works with SMS, WAP, and embedded applications for cellphones and PDAS, realtime billing, remote data access and phone number portability. She wishes she had more Erlang projects. Brenda likes the technology coming from the PHP community and doesn't understand what the fuss is over Java.

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James Ward

Technical Evangelist, Adobe Systems

James Ward is a Technical Evangelist for Flex at Adobe and Adobe's JCP representative to JSR 286, 299, and 301. Much like his love for climbing mountains he enjoys programming because it provides endless new discoveries, elegant workarounds, summits and valleys. His adventures in climbing have taken him many places. Likewise, technology has brought him many adventures, including: Pascal and Assembly back in the early 90's; Perl, HTML, and JavaScript in the mid 90's; then Java and many of its frameworks beginning in the late 90's.

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Brett Warden

Intel Corporation

Brett, Albert, and Saurabh are Software Engineers, and Santosh is a Systems Architect in Intel's Modular Communications Platform Division. They are researching data-plane and other embedded capabilities of Intel Architecture systems.

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Simon Wardley

COO, Fotango

Simon Wardley Simon Wardley leads the team at Fotango an innovative software and systems development business and the creators of Zimki, the JavaScript web application platform launched in the summer of 2006. Zimki enables developers and businesses to build and deploy web apps quickly, with no up front cost and no requirement for additional development tools, hardware or hosting. Simon has worked within the software industry for a long time. He has held senior and advisory roles within large multinationals as well as several successful start-ups. He is a strong advocate of the commodisation of IT services, SaaS, Utility Computing and the Open Source movement.

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Greg Watson

Los Alamos National Laboratory

Greg is team leader of the Cluster Research Team in the Advanced Computing Laboratory (ACL) at Los Alamos National Laboratory. He is also project leader for the Eclipse Parallel Tools Platform, an Eclipse Foundation Tools project. His research interests focus on tools for parallel computers, program debugging, distributed computing and operating systems.

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Jeff Waugh

Consultant, Gnome/Waugh Partners

Jeff Waugh

By day, Jeff Waugh is a consultant with Waugh Partners. By night, he rides shotgun on the GNOME release juggernaut and plots the Open Source blogging explosion with Planet. Waugh is an active member of the Free Software community, holding positions such as Chairman of the Annodex Foundation (2006), Director of the GNOME Foundation Board (2003-2004, 2006), GNOME Release Manager (2001-2005), committee member (2000-2001) and president (2002-2003) of the Sydney Linux Users' Group, and member of the 2001 and 2007 organising teams. He was one of the founding employees of Canonical, spending two and a half years engaged in Ubuntu business and community development. In 2005, Waugh won the Google/O'Reilly Open Source award for Best Evangelist. Jeff is a card-carrying member of Linux Australia, but does not say "mate".

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Garth Webb

Garth Webb Speaker biography coming soon.

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Joel Webber


Joel Webber Speaker biography coming soon.

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Luke Welling

Security Analyst, OmniTI

Luke Wellling. Luke Welling is a Security Analyst at OmniTI. He has been using PHP for nearly ten years. PHP and MySQL Web Development, co-authored with Laura Thomson (Sams 2004), is the best selling open source programming book of all time. He is a regular speaker at open source conferences around the world.

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David Welton


David N. Welton lives and works in Padova, Italy. He is an expert in a variety of open source technologies (Linux, Apache, Tcl, C, Ruby, Hecl, etc...) He has been part of the Debian project since 1996, and "Vice President" of Apache Tcl with the Apache Software Foundation since 2001, and most recently created the Hecl scripting language for Java-enabled cellular phones.

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Brad Whitaker

Senior Software Engineer, Six Apart

Brad Whitaker is Senior Software Engineer for LiveJournal, Six Apart's innovative social blogging community. Having been involved in a series of technology startups for the past 8 years and a core contributor to LiveJournal since its inception, Whitaker was instrumental in helping create key pieces of Web 2.0 architecture such as the MogileFS storage system and Memcached caching system.

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Speaker biography coming soon.

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Michael (Monty) Widenius

CTO & Co-founder, MySQL AB

Monty Widenius Michael "Monty" Widenius is the lead developer for the popular MySQL RDBMS project and is CTO of MySQL AB, a company that he co-founded to provide licensing, support, and other services for the MySQL RDBMS. In a past life, he has worked on games coded in assembler, software for a single-card computer used by power companies, a multitasking OS for an 8-bit Z80-based computer, and a lot of data warehousing. He has worked in assembler, BASIC, C, C++, Commmon Lisp, shell and Perl, and some other less common languages. Widenius lives in Helsinki, Finland.

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Eric Wilhelm

Eric Wilhelm is the architect and primary developer of the dotReader open-source Perl e-book reader, leader of the Portland Perl Mongers, and author of many CPAN modules. Eric is very involved in the open source community and is a contributor to several open source projects including the PAR perl packager, Module::Build, and Jifty.

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Simon Willison

Simon Willison Simon Willison is co-creator of the Django web framework for Python. He has worked for the BBC and Yahoo!, and is now an independent consultant.

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Jonathan Worthington

Jonathan Worthington holds a degree in computer science from the University of Cambridge, England. After graduaing last summer, he has been doing a mix of consultancy, going to Perl events, hacking on Parrot and traveling.

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Steve Yegge

Senior Software Engineer, Google

Steve Yegge Bio: Steve started high school at age 11 and graduated at 14. He then made the only logical choice, which was to play guitar in garage bands until he was 18, when he joined the U.S. Navy as a nuclear reactor operator. Steve went on to earn his B.S. in computer science from the University of Washington, then spent five years at Geoworks developing operating systems software in 8086 assembly language. He worked at various startups, then spent just under seven years at as a senior software development manager. In his spare time Steve built a massively multiplayer RPG that garnered him a grand prize at Comdex in 2002. Steve has been a Googler since 2005 and plans to stay there forever.

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Nathan Yergler

Software Engineer, Creative Commons

Nathan Yergler is a software engineer for the Creative Commons. Yergler joined CC in July 2004 after pioneering the use of Python in the high school programming curriculum at Canterbury School. He lives in Fort Wayne, Indiana, and will receive a B.S. in computer science from IPFW in May, 2006.

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Mimi Yin


Mimi Yin is the interaction designer on the Chandler project, an inter-personal information manager being developed by the Open Source Applications Foundation OSAF.

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Peter Zaitsev

Co-Founder, Lead Consultant, Percona Ltd

Peter Zaitsev is Co-Founder and lead consultant of Percona Ltd, Company specializing in MySQL and LAMP Performance Optimization and scalability. Before starting his own practice Peter was High Performance Group Manager at MySQL AB.

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Geoff Zeiss

Director of Technology, Autodesk, Inc.

Geoff Zeiss Geoff Zeiss has 20 years experience in the geospatial software industry and more than ten years experience working with utilities, communications, and public works in enterprise geospatial IT around the world. Currently he is Director of Technology at Autodesk (the world’s fifth largest software developer), a position he has held since 2001. His particular interests include open source geospatial and Web 2.0, streamlining the infrastructure management workflow at utilities, telecommunications firms and local government, and converged BIM/CAD/GIS solutions.

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Jim Zemlin

Executive Director, Linux Foundation

Jim Zemlin, formerly executive director of the Free Standards Group, is the executive director of the Linux Foundation. Zemlin previously served as vice president of marketing for Covalent Technologies, the leader in products and services for the Apache web server. Prior to that, he was a member of the founding management team of Corio, a leading enterprise application service provider that had a successful initial public offering in July 2000.

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Andrei Zmievski

Chief Architect, Outspark, Inc.

Andrei Zmievski Andrei Zmievski is Chief Architect at Outspark Inc, where he is working on a technology platform for publishing casual online RPG games. In the past he worked on internal tools at Yahoo! Inc., specializing in i18n and infrastructure software, such as PHP and Apache. He is also a core PHP developer, leader of the PHP-GTK project, and a co-author of "PHP Developer's Cookbook" and Smarty templating system. His current focus is the native Unicode support in PHP. In his free time he studies languages and linguistics, goes sailing, and travels to other countries.

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