My pal Mikey showed me Last.FM, which is a website that tracks your music listening habits. It uses a free plugin for most of the popular music players like iTunes, Winamp, and MediaPlayer which transmits data to the Last.FM server. You can view your profile which will show the last 10 songs listened to, top albums, etc. I just started, so I don’t have enough data in Mikey has it! Check it out sometime, it’s very neat!