Street Fight Daily: 01.23.12

A roundup of today’s big stories in hyperlocal media, technology, advertising and startups...

Mason: Groupon Has 10,000 Employees, 70% Outside of U.S. (TechCrunch)…

CBS Local Deal Opens Door for Pureplay (NetNewsCheck)…

Why 2012 Is the Year of Mobile Advertising (Mashable)…