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.


David Karnstedt

David Karnstedt

Senior Vice President of North American Sales, Yahoo! Inc.

David Karnstedt is Yahoo!’s Senior Vice President of North American Sales. Karnstedt oversees the company’s integrated Search and Display advertising sales team, which is responsible for effectively meeting the needs of Yahoo!’s advertiser partners by providing them with holistic solutions utilizing the broadest array of products and data insights across the media landscape.

David Karnstedt joined Yahoo! Search Marketing (formerly Overture) in September 2001, bringing more than eleven years of online advertising and search marketing experience to the company. Since joining Yahoo!, David has built and managed the company's North American sales force responsible for selling a variety of sponsored search, marketing analytics and small business related products. He also introduced Yahoo! Search Marketing's channel sales program, focused on establishing strategic partnerships with key advertising agencies, search engine marketing companies and search technology providers.

David began his career with several leading internet companies developing revolutionary online advertising methods that are still in use today. He was Vice President and General Manager of AltaVista's Internet search group where he helped the company become one of the first portals to enable all rich media formats. He also led the initiative to rebuild AltaVista's search platform and was instrumental in the successful integration of four different companies.

Before joining Alta Vista, David served as Western Advertising Director for Wired Digital Lycos, overseeing sales efforts while developing and conducting some of the industry's earliest brand impact studies. In 2001, David co-founded the Interactive Advertising Bureau's search committee, dedicated to developing standards and research to further the search marketing industry. He is a frequent speaker at a variety of media and industry events.

See all sessions presented by David Karnstedt.