Discogs is a user-built database containing information on artists, labels, and their recordings. Discogs also incorporate a Marketplace where you can buy and sell the recordings. At Discogs you can search for information about music, track your collection and want list, buy and sell music recordings, and help build the database by submitting new information. Discogs also offers discussion groups for discussing music and other things with like minded people. You can also listen to and watch YouTube videos which are embedded onto a release page.