Foursquare, which recently rolled out its first major ad effort, continues to add new users at a healthy clip, thanks to international growth.
Tech startups may see a shift in culture when the money starts coming in.
Most of the Gowalla team is moving to Facebook’s headquarters in Palo Alto
Here's what Foursquare thinks about acquisitions [VIDEO] - Business Insider
Foursquare raised $50 million this summer
The White House will be using it to highlight places he visits and what he does there