SoundCloud - Enjoy music & follow favourite artists
Openwhyd - Collect and Share the tracks you love.
Bandcamp - Discover amazing music and directly support the artists who make it.
SoundClick - SoundClick is a music-based social community.
Audius Music - Decentralized & open-source streaming platform controlled by artists, fans, & developers.
Zoff - Collaborate on a live music and video playlist with your friends.