Openwhyd - Collect and Share the tracks you love.
Heartbeat - Listen to music with your friends together, on Spotify
musiqpad - Musiqpad is a social-music software platform for users to host their own ‘pads’ (rooms).
Liyo - Stream your favorite music live with friends 🎶
Spotibot - Spotibot uses the listening habits of millions of people to help you find your new favourites.
TuneMeet - Chat with people who are listening to the same song