MusicTwin Finder - Find your MusicTwin by your Spotify playlists in 5 seconds.
SOUNDS - Discover music with friends
Symphona App - Designed to make orchestral staff management a breeze.
Wohooo.net - Create Your Own Online Radio Station
JamBuddy - Find and collaborate with musicians around you thru Spotify
Listen2MyRadio - Stop dreaming, start streaming. Free and premium Shoutcast and Icecast audio broadcasting.