The Web 2.0 Summit (originally known as the Web 2.0 Conference) was an annual event, held in San Francisco, California from 2004 to 2011, that featured discussions about the World Wide Web. The event was started by Tim O'Reilly, who is also widely credited with coining the term "Web 2.0". It was organized by O'Reilly's company, O'Reilly Media, with O'Reilly and journalist/entrepreneur John Battelle serving as co-moderators. The Web 2.0 Summit was an invitation-only event, and featured many of the most prominent entrepreneurs and thinkers of the web community.
Spin-off events included the Web 2.0 Expo, which lasted from 2007 to 2011, and the Gov 2.0 Summit, which occurred in 2009 and 2010.
The first Web 2.0 conference was held October 5–7, 2004 at the Hotel Nikko in San Francisco. It is believed to be the point at which the term Web 2.0 came into popular usage. Speakers at the conference included Jeff Bezos, Mark Cuban, John Doerr, Mary Meeker, Craig Newmark, Marc Andreessen, Cory Doctorow, Bill Gross, Lawrence Lessig, Halsey Minor, Louis Monier and Jerry Yang.
The 2005 Web 2.0 Conference was held October 5–7, 2005 at the Argent Hotel in San Francisco. Speakers included Stewart Butterfield, Mark Cuban, Bram Cohen, Mena Trott, Joe Kraus, Vinod Khosla, Barry Diller, Mary Meeker, Ray Ozzie, Terry Semel and Evan Williams.