Two years ago, Foursquare was the star of the New York start-up scene. Celebrities and major brands embraced its mobile app, and companies like Facebook and Yahoo were eager to buy it. Foursquare's founders turned down those offers, convinced of its potential as an independent company. Since then, the buzz...
<A HREF="http://www.nytimes.com/2012/06/07/technology/in-app-overhaul-foursquare-shifts-focus-to-recommendations.html">Read More</A>