KOLLEKT.FM - Stay up to date with new music shared by sources you trust
Gnoosic - Even if you don't know what you are looking for - gnod will find it.
Maloja - Simple self-hosted music scrobble database to create personal listening statistics.
Musicroamer - A visual Pandora for discovering new music
stats.fm - With the click of a button you'll be logged with your Spotify account and you'll instantly gain access to a valhalla of cool stats and insights.
LivePlasma - Discovery engine map for books, music, and movies