Americans Whose Political Opinions Have Been Influenced By Social Media, September 2012 [CHART]
Other data suggests that social content is in fact having an effect on voters. For instance, when AYTM Market Research surveyed US internet users in September, more than a quarter said social media had influenced their political opinions. Similarly, Pew found that 41% of Twitter users at least sometimes learned something about the election from the service, as did 36% of Facebook users. Read the rest at eMarketer.