I just discovered The Hype Machine and had to spread the word. It's an mp3 jukebox of songs scraped from a huge list of music blogs, with a bunch of ways to discover, listen to, and buy the tunes.

Here's a sampling of what you'll find there:

• Front Page: What's going on right now in the music blogosphere
• Radio + Chat: Popular & newly posted music & a place to talk about it
• Popular: The most popular artists, searches and blogs right now
• Hype Spy: Snoop on what other people are listening to
• 2007 Music Zeitgeist: The best songs, albums and bands through the eyes of bloggers

You could get lost on The Hype Machine for hours, or you could just pop-open the Popular Blog Tracks player and go about your business. Either way, you're sure to discover some great new music.