Momixa - Pick two songs and get the perfect mix
Beata - For discovering the best new music from around the web
Music Suggestions Ninja - Enter an artist's name & find similar, lesser known artists
avant.fm - Avant.fm provides a customizable, listenable feed of new releases from the best indie record labels, across all genres.
Boil the Frog - Create a seamless playlist between any two artists
CLiGGO MUSIC - CLiGGO MUSIC provides free music enjoyment on your pc, smart phone or tablet.