Slackbox - Spotify playlist collaboration through Slack
dubtrack.fm - Dubtrack.fm is a social DJ site where users can share and discover the latest and greatest by...
RightGIF - Less noise, better GIFs. A better /giphy for Slack.
Liyo - Stream your favorite music live with friends 🎶
Remixatron - Infinite Jukebox on the command line in Python.
Join My Playlist - Listen to music live together with your friends in Spotify.