|The future looks bright, by rogiro|
Spotify: This one's taken the geek world by storm. Search for your fave music. Play your fave music. Share your fave music. Crowd-source playlists and generally have a whole lot of fun. Spotify is only recently in the United States (but Europe loves it!), and at the date of this post, still appears to have a waiting list for invites. Premium features include the ability to listen to your jams offline or send them to your mobile device. The rest is free ... and you know you're ready to try the newest music web 2.0 out there.