humit - A social networking app for music sharing and discovery.
Twinjack - Stream Spotify music with anyone with just a link
Songlink - Share music with anyone.
BeatSense - Discover great music hand-picked by real people, in a single click. FREE and in real-time!
Playback - A tool that organizes music video shoots for directors 🎬
ReverbNation Discover - Stream hand-picked, ad free music from emerging artists.