There is no doubt that Barack Obama used social media networking to his advantage in 2008 and has been effective at networking ever since. So adept his campaign at reaching out to supporters online that that he has 18,834,433 Twitter followers. To put that number in perspective, consider that GOP challenger Mitt Romney has only 900,377 Twitter followers, or about 47% as many. But appearances can be deceiving, says a new social media metrics tool. Called Fake Follower Check, the site reveals that 41% of Obama’s Twitter followers are phony and another 35% are inactive. In contrast, only 22% of...