Don't you just love Spotify, they launched yesterday, their fitness music service (Spotify Running). Spotify can now respond to a runner’s tempo to create an on-the-go playlist to match the perfect music to your step. In their words it will make you a harder, better, faster, stronger runner. As well as integrating Spotify Running into the fitness app RunKeeper this year, Spotify also announced a partnership with Nike + to further push the service.
Looking for a running play list check out Spotify's Ultimate Workout Playlist 2014 here.