Foursquare Launches Ad Platform For Small Businesseshttp://www.forbes.com/sites/jeffbercovici/2013/10/14/foursquare-launches-ad-platform-for-small-businesses/?utm_campaign=forbestwittersf&utm_source=twitter&utm_medium=social by playhard • 13 years ago 1 0 13 years agoFOforbes.com