I like b-sides is a new service from the maker of the now-defunct DiggSuggest. The idea is simple: you go to the Web site and upload the metadata from your iTunes library (in an XML file), and the site tells you songs that you might like, based on the bands it knows you do.
I tried this out with a small library of about 4GB and it gave me a good sampling of tracks. All of them come from Amazon's MP3 store, and can be previewed in a small player that sits on the side. There are also links … Read more