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Associated Press
FILE - This Nov. 2, 2010 file photo shows a sticker handed out to a voter on Election Day, in Waterville, Maine.  Here's something most politicians can click the like button for: Facebook friends played a big role in getting hundreds of thousands of people to vote in 2010 who probably would have otherwise stayed home, a new scientific study claims. It provides scientific evidence showing the real world political power of social media. (AP Photo/Robert F. Bukaty, File)

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