When I was a kid, my favorite thing was to buy a new record from the music store and play it on my home stereo for the first time. Discovering new songs, or hearing played-out songs anew, was magic to me.
So I was thrilled when I found out about Pandora. (Thanks, Tirsden!) This site helps you find music you like. You give it the names of a few of your favorite songs, and it creates a playlist of similar songs. As you rate the suggestions, the resulting "Radio Station" starts to provide you with fresh, enjoyable music.
Curious to know what kind of music I'm into? Check out Hard to Pin Down Classical / Progressive Folk Rock Radio. Some of Pandora's choices are pretty cool. Others are quite a stretch, although it's usually fun to hear them. I guess I can sense some similarity between Blue Oyster Cult and Renaissance. And I had no idea Todd Rundgren jammed like that (The Ikon).
Edited on 2006-10-11 to add this list of Radio Stations...