Street Fight Daily: Foursquare’s 20M, Groupon Acquires Ditto.me
A roundup of today’s big stories in hyperlocal content, commerce and technology...
Foursquare Hits 20M Users — But How Many Are Active? (ReadWriteWeb)…
Groupon Acquires Social Recommendation App Ditto.me (TechCrunch)…
Former Yahoo Exec: 30% of PC Search Is Local (ScreenWerk)…