I've been introduced to the joys of Audioscrobbler in the last week or so.
If you want to come and join the fun, or if you already have and you want to know where I am, this is my page.
Audioscrobbler. As Dave said: Promoting Realtime Music Snobbery.
I've been using it for a while now, coupled with last.fm it's pretty cool.
Only trouble is I forget to check it for ages, as it's just a plug-in that runs in the background - next thing I know my TRUE musical taste is out in the open - aAARGHH!!
Only problem is the windows plug in doesn't update from what I listen to on my iPod, and thats the only place I listen to digital music.