musiqpad - Musiqpad is a social-music software platform for users to host their own ‘pads’ (rooms).
Listen2MyRadio - Stop dreaming, start streaming. Free and premium Shoutcast and Icecast audio broadcasting.
üWave - üWave is a self-hosted collaborative listening platform.
Wohooo.net - Create Your Own Online Radio Station
Twinjack - Stream Spotify music with anyone with just a link
SOUNDS - Discover music with friends