Jog.fm helps you find the best music for your run, walk or bike ride.
To find the best tunes for your run all you need to do is enter the average time it normally takes you to run (or walk or cycle) one kilometre. Jog.fm will then suggest tracks for you to listen to based on your pace.
Jog.fm also provide a Google Maps application that lets you plan your run. To plan a route just enter a start and finishing point and Jog.fm will suggest a route and even tell you the distance.