Spotify - Map shows when two people play same song at same time
WebTechResources - Find best tech resources everyday, sorted by people like you, ready to select and use.
SoundCloud - Enjoy music & follow favourite artists
AlternativeTo - AlternativeTo lets you find apps and software for Windows, Mac, Linux, iPhone, iPad, Android, Android Tablets, Web Apps, Online, Windows Tablets and more by recommending alternatives to apps you already know.
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
JSter - JSter is a community-driven catalog of the most useful javascript libraries.