Until AM - DJ in your browser with this SoundCloud music mixer
Spotify - Map shows when two people play same song at same time
Fretello Stage - Jam, record and share your music in the blink of an eye
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Songlio - Free musical guessing game: race friends to name that tune
SoundCloud - Enjoy music & follow favourite artists