SAN FRANCISCO, CA - OCTOBER 19: LinkedIn co-founder and executive chairman Reid Hoffman speaks during the 2011 Web 2.0 Summit on October 19, 2011 in San Francisco, California. The 2011 Web 2.0 Summit... more 
SAN FRANCISCO, CA - OCTOBER 19: LinkedIn co-founder and executive chairman Reid Hoffman speaks during the 2011 Web 2.0 Summit on October 19, 2011 in San Francisco, California. The 2011 Web 2.0 Summit features keynote addresses by Internet and Technology leaders ends today. (Photo by Justin Sullivan/Getty Images) less 
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Getty Images | Photo By Justin Sullivan / Getty Images
Wed, Oct 19, 2011 7:26 PM EDT