Spotify - Map shows when two people play same song at same time
YouLikeHits - YouLikeHits is an online service that brings results within seconds.
SoundCloud - Enjoy music & follow favourite artists
Linkcollider - Link Collider is a web-based service that is designed to grow your online business, social media networks, and personal blogs.
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
LikesPlanet - Get Facebook likes, Twitter Followers, YouTube Subscribers, Comments, and Shares.