I Heart Peel
I Guess I'm Floating pointed my attention towards Peel a couple weeks ago, and so far I'm loving it completely. Basically, you tell it your favorite music blogs, and using the iTunes interface, it pulls all of the mp3s out of them, lets you stream or download, open that blog post to see more about the song, etc. Then once you download, it automatically loads it to your iTunes library. It's essentially an RSS feed for mp3s on your favorite music blogs. Awesome! Right now it only works for macs, so enjoy it, fellow apple people.