Groupon CEO: We’re in ‘rare air’ with mobile By Posted June 4, 2016 In Groupon Groupon CEO: We’re in ‘rare air’ with mobile2016-06-042016-06-04/wp-content/uploads/2017/06/logo-bw-2-1.pngEric Lefkofsky | Entrepreneur & Philanthropist/wp-content/uploads/2017/06/logo-bw-2-1.png200px200px 0