Internet And Technology Leaders Address Web 2.0 Summit 2011

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Foursquare co-founder Dennis Crowley speaks during the 2011 Web 2.0... ニュース写真アメリカ合州国,インターネット,カリフォルニア州,テクノロジー,デニス クローリー,ビジネス,ファイナンス,創始者,横長,法人企業,米カリフォルニア州 サンフランシスコ,話すPhotographer Collection: Getty Images News 2011 Getty ImagesSAN FRANCISCO, CA - OCTOBER 18: Foursquare co-founder Dennis Crowley speaks during the 2011 Web 2.0 Summit on October 18, 2011 in San Francisco, California. The 2011 Web 2.0 Summit features keynote addresses by Internet and Technology leaders and runs through Wednesday. (Photo by Justin Sullivan/Getty Images)