Today location-based social network Foursquare announced Radar, a new real-time feature that sends users notifications when they’re close to a place on their to-do lists, or the any other Foursquare lists they follow. Article source: RRW http://feedproxy.google.com/~r/readwriteweb/~3/m2M8TzHcti0/foursquares_real-time_radar_recommends_where_to_go.php