Steve Ballmer in conversation with John Battelle on the keynote stage at the Web 2.0 Summit.

Photograph from Web 2.0 Summit 2007 in San Francisco, California. Web 2.0 Summit is co-presented by O'Reilly Media and CMP Media. Production by Good Company Communications.

Photograph copyright James Duncan Davidson. Commercial and non-commercial use in blogs and news articles directly covering Web 2.0 Summit 2007 is permitted with attribution. For all other uses, please contact me at james@duncandavidson.com.