Quorus - A new way to listen to music through collaboration
aux.app - A free web-based music platform to play music from other popular online streaming services.
musiqpad - Musiqpad is a social-music software platform for users to host their own ‘pads’ (rooms).
Partyhero - Pass your friends the aux!
ReverbNation Discover - Stream hand-picked, ad free music from emerging artists.
Slackbox - Spotify playlist collaboration through Slack