I have become a premium subscriber to Spotify, the European streaming music service. Most people use it for free, of course, since that is an option. I may stop paying in the future if I end up not using it much. But generally I like encouraging easy to use, legal music distribution. There isn't exactly a torrent of that, you know.
The service is free in the UK. Other west Europeans can get an invite from an existing user so it is free anyway, unless you have excess money or conscience.
Edit: Running it under WINE in Ubuntu 8.10. Because I can.