If you're tired of music discovery tools "discovering" the same stuff you've been listening to, Muzic eschews more traditional acts in favour of small and indie musicians. The best part is songs featured on Muzic are available for download.
Hit up Muzic and start browsing right away or browse the tag-cloud to find music by artist or genre. You'll be able to read comments on the music, find related tunes, and — best of all! — download the tracks to load up on your MP3 player for offline enjoyment. Clicking on the "Get Song" link not only gives you a link to download the song but takes you to the blog where the music was found so you can read more about the artist and related works.
Muzic is a free service that requires no sign up — but you'll want one if you wish to save settings and favourites between sessions. Check out the service at the link below and if you find any great tunes in your exploration, throw up a link in the comments.