Spotify - Map shows when two people play same song at same time
Subsonic - Subsonic is a free, web-based media streamer, providing ubiquitous access to your music and video.
SoundCloud - Enjoy music & follow favourite artists
Daphile - Daphile is an audiophile class music server & player OS – targeted to dedicated headless PC.
Ampache - Web ( HTTP centralized ) based audio/video streaming application
Logitech Media Server - Logitech Media Server is the server software that powers audio players from Logitech (formerly...