AddThis, the largest social infrastructure and data platform on the open web, has determined the “Social Sharing Trends of 2012” by measuring the sharing habits of more than 1.3 billion people a month, across 14 million domains and 300+ services. This year, the Presidential Election, London Olympics, Superstorm Sandy, and YouTube launching instantaneous pop stars The post [Infographic] 2012′s Hottest Social Sharing Trends appeared first on Search Engine Journal .