Internet And Technology Leaders Address Web 2.0 Summit 2011 (Dick Costolo)

Internet And Technology Leaders Address Web 2.0 Summit 2011

In This Photo: Dick Costolo
Twitter CEO Dick Costolo speaks during the 2011 Web 2.0 Summit on October 17, 2011 in San Francisco, California. The 2011 Web 2.0 Summit features keynote addresses by Internet and technology leaders and runs through Wednesday.
(Oct. 16, 2011 - Source: Justin Sullivan/Getty Images North America)