Oh, my mistake, sorry. Just go to http://www.last.fm and search for Fez1979 – there should appear results for artists, users etc – choose users. I can not give you direct link, because it automatically redirects me to lastfm in Polish language.
You install one small plugin for winamp and everything you listen to is counted and sent do the site, and everyone can see what are you listening right now, and history of your played music. It is called scrobling. You can add friends to your profile, message with them, join various groups connected with some band, artist, etc. If you have listened enough music, the system may compare your music taste to other users.
Great site
Just go to http://www.last.fm