The coolest thing about Audioscrobbler is its sister site, last.fm. After you listen to enough songs for Audioscrobbler to get a profile of you, you automatically get two streaming radio stations. One is based on the songs in your collection(called Personal Station), the other streamed from the collection of the people who share your taste (your Profile Station) who have their systems active.

You can find instructions on listening as well as my stations at last.fm.

If you want to participate, I recommend starting at Audioscrobbler and then once your profile is up and running check out your stations. Let me know if you get it going and we can add each other as contacts.