Spotify - Map shows when two people play same song at same time
MP3Clan - MP3Clan is a popular web-based application that allows you to enjoy and download unlimited audio songs anytime anywhere.
SoundCloud - Enjoy music & follow favourite artists
Mp3Bear - Mp3Bear is an Mp3 music search engine that locates the mp3 files all over the net.
Ampache - Web ( HTTP centralized ) based audio/video streaming application
LoudTronix - LoudTronix is the most leading service that helps you to find and download your favorite Mp3 music without any limitation.