Antenna makes finding radio stations online easier. Based on the Adobe AIR runtime, Antenna tries to accomplish that.
Using a vast list of stations combined with a map interface, you can discover, listen to, and switch between thousands of stations effortlessly. Search is possible by country or genre, or just by clicking on a location on the map. Beyond that you have a history of recently-listened stations and can even rate the ones you like and return to them easily later.