Groupon becoming a ‘predominantly mobile marketplace’: CEO By Posted August 3, 2013 In Groupon Groupon becoming a ‘predominantly mobile marketplace’: CEO2013-08-032013-08-03/wp-content/uploads/2017/06/logo-bw-2-1.pngEric Lefkofsky | Entrepreneur & Philanthropist/wp-content/uploads/2017/06/logo-bw-2-1.png200px200px 0