SoundUnwound

Amazon and IMDB have collaborated on a music website called SoundUnwound - and it even has some wiki-like elements allowing users to submit page edits (I've already submitted corrections for Steve Taylor's page). It's not the prettiest website around, but it does have sound clips from AmazonMP3, YouTube clips, and plenty of room for growth.

With its strong backers and potential, this site may surpass the Allmusic Guide as my primary music research tool.