Groupon's largest shareholder and chairman, Eric Lefkofsky, has a back story investors might want to know. http://tech.fortune.cnn.com/2011/06/10/groupon-eric-

Groupon's largest shareholder and chairman, Eric Lefkofsky, has a back story investors might want to know. http://tech.fortune.cnn.com/2011/06/10/groupon-eric-lefkofsky/ http://tech.fortune.cnn.com/2011/06/10/groupon-eric-lefkofsk...