This is a must have for any music nerd. Peel is a 2MB software download that will make sure you never miss another great MP3 posted by your favorite blog ever again. Peel allows its users to subscribe to blogs and get notified when new music becomes available. You can then download each track, preview it in Peel's built in audio player, then (if you like it) upload the track to your iTunes library with the push of a button. Sick!
I've been messing around with it all morning and it's great. You can currently download a free public beta version of Peel by clicking the link below. Looks like when it goes live, the program will cost $15... pocket change!