Business Commentary2012 Michigan Social Media Brand IndexFaster than a tweet, more companies are using social media to increase their market presence and engage customers. In a first-of-its-kind study, Market Strategies International ranked 50 Michigan companies on how well they succeeded in social media.By Hour Detroit - December 11, 20123038Facebook Twitter Pinterest WhatsApp *The study measured social media activity from mid-July 2011 to mid-July 2012