The Atlantic │September 6, 2011 NBC News │ September 8, 2011 The Chicago Tribune │ September 13, 2011 CBS Chicago │ September 6, 2011 Mashable │ September 5, 2011 Accustomed to seeing awesome deals on smaller purchases, Groupon’s Chicago subscribers were surprised to see an amazing deal on a college course popping up in their inbox. “It wasn’t as cheap as […]