FILE - In this Oct. 13, 2010 file photo, Isaac "Biz" Stone, co-founder and Creative Director of Twitter, Inc, speaks during a conference at the Innovate Tijuana festival in Tijuana, Mexico. AOL Inc. ... more 
FILE - In this Oct. 13, 2010 file photo, Isaac "Biz" Stone, co-founder and Creative Director of Twitter, Inc, speaks during a conference at the Innovate Tijuana festival in Tijuana, Mexico. AOL Inc. said Monday, March 14, 2011, that Stone, is joining AOL and its recent acquisition The Huffington Post Media Group as an adviser on "social impact and cause-based initiatives." less 
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Associated Press | Photo By Guillermo Arias, file
Mon, Mar 14, 2011 1:48 PM EDT