Audioscrobbler

www.audioscrobbler.com

Quote:

Audioscrobbler is a computer system that builds up a detailed profile of your musical taste. After installing an Audioscrobbler Plugin, your computer sends the name of every song you play to the Audioscrobbler Server. With this information, the Audioscrobbler server builds you a 'Musical Profile'. Statistics from your Musical Profile are shown on your Audioscrobbler User Page, available for everyone to view.

There are lots of people using Audioscrobbler, but you probably won't be interested in most of them. The Audioscrobbler Server calculates which people are most similar to you, based on shared musical taste, so you can take a look at what your peers are listening to.

I use it, it's cool. It has a few other nifty things about it, see the help page for more info.

Sign up and join this group :D

He got me hooked on it too its good to expand your musical horizons later on once you've listened to about 100 songs...
My Profile is here

although i'm looking at now, the first thing which popped into my mind was something to do with the government monitoring a site like this for illegally sourced music...

They can't tell how you got the music, all they know is that you've listened to it.

http://www.audioscrobbler.com/user/KnightOfNih/