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"In many ways, 2013 was a pivotal year for the social media sector. Facebook  shares doubled after showing it could crush the mobile ad market, Twitter  went public and reignited the social media"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.aol.com/article/2014/01/16/4-social-trends-to-watch-in-2014/20809969/>