I love 8tracks.com. And I love the Embedded Media Field module. They meet; I screencast.
A good friend of mine and colleague from my days with Live365.com has started a remarkable music website called 8tracks.com that simplifies creating a music mix online.
Being a huge fan of mix tapes in high school and as one who always likes to share the music that excites me, I have been using the service for some time.