Groupon CEO Andrew Mason to Stockholders: OS for eCommerce Posted by iProject on Monday May 07, 2012 @08:43AM from the thenextweb.com dept. http://thenextweb.com/insider/2012/05/07/in-letter-to-stockholders-groupon-ceo-explains-why-he-wants-to-move-fast-on-a-bumpy-road/ ( 2 comments | 10 points | on HN )