I joined Spotify this week. It's great! And because it links up with my Facebook account, I get to see what all my friends—like my boss Nick Denton—are listening to. Oh, Nick. I'm so embarrassed for you.
Spotify is coming to the U.S. at last—and soon. And unlike Amazon or Google or Apple, it's not just another island in the cloud. It's fueled by sharing. (That's what we love about Rdio too.) Your contacts' listening habits are out in the daylight for everyone to see. Which is great, for discovery. But can also be a little humiliating.