FIEND.fm - "Hot or Not" for music discovery: 2 hrs of tracks in 2 mins
Figure - Propellerhead creates world-class software products and services that inspire music makers and provide the foundation for a worldwide creative musical community.
Pacemaker - Create and share mixtapes with friends
keezy - A colorful soundboard. Play with music.
Boil the Frog - Create a seamless playlist between any two artists
Splice - Music creation, collaboration, and sharing made simple.