Platinum Sponsor

  • Nokia

Gold Sponsors

  • Adobe Systems, Inc.
  • America Online, Inc.
  • eBay
  • Etelos
  • Hewlett Packard
  • Level 3 Communications
  • Microsoft
  • Sun Microsystems
  • WebEx

Silver Sponsors

  • Accenture
  • Ask.com
  • Cisco
  • Dell Inc.
  • F5 Networks
  • Fast Search
  • Fenwick & West LLP
  • IDA Ireland
  • iQuestions
  • Jordan Edmiston Group
  • Juniper Networks
  • NeuStar Ultra Service
  • Rearden Commerce

Bronze Sponsors

  • Layered Technologies, Inc.
  • Phonecasting.com
  • spigit
  • Userplane

Launch Pad Sponsors

  • North Bridge Venture Partners
  • Norwest Venture Partners
  • O'Reilly Alpha Tech Ventures
  • Panorama Capital

Media Partners

  • Blogher
  • Topix.net

Sponsor Opportunities

Reach business leaders and technology influencers at the Web 2.0 Summit. Call Paige Finkelman at (415) 947-6358 or email

Download the 2007 Web 2.0 Summit Sponsor Prospectus (PDF).

Contact Us

View a complete list of Web 2.0 Summit contacts.


Stewart Butterfield

Stewart Butterfield

General Manager, Flickr, Yahoo! Inc.

Stewart Butterfield is a director of product management at Yahoo! where he oversees the development of Flickr.com. He also co-founded and acted as CEO of Flickr's parent company, Ludicorp, before its acquisition by Yahoo! in the spring of 2005.

In over a decade of web design and development Butterfield's love for the medium and appreciation for the social possibilities of networked software have only grown stronger. He has had a distinguished career as a designer, entrepreneur, and technologist, and is a frequent speaker at conferences and events around the world.

He lives in San Francisco with his wife Caterina Fake and their small dog. He studied philosophy at the Universities of Victoria (B.A.) and Cambridge (MPhil.), where he graduated with honors.

See all sessions presented by Stewart Butterfield.