SPS of 2MuchBeauty.com told me about incredible web service the other day. AudioScrobbler is everything that you needed to extend your music preferences and then some. It's really amazing service that connects most audio players like WinAmp, Media Player and iTunes to your AudioScrobbler account. It records what you play, builds your charts, charts of your groups and recommends similar music. It's free and fun!
Some might say it's invasion of your privacy, but don't get me started on privacy!
I created siblogs group, so if you decide to use AudioScrobbler and you are on si.blogs list, join the group!