Thanks for the heads up on Grooveshark and 8tracks. I think I'm going to suggest to Amazon that they allow people to post favorite playlists and allow people to download them at one shot, like an album. That way, you could give someone a gift credit on Amazon for the play list that would not cost much more than mailing a CD via the post office. I don't know if they'd go for it, but it makes sense to me.