Ok. This is totally pointless. But pointless in a fun way.
Audioscrobbler.com is a site that gathers info on what people are playing in their MP3-players (on their computers) and compiles charts. It also compiles personalised recommendations on what new music may suit your taste.
Plugins are available for Winamp, Media Player, iTunes, Xbox Media Center, AmigaAMP (for MorphOS. AmigaOS version is stated as "Need help compiling") and a couple of other players.
AmigaAMP plugin (MorphOS) -- source availableIt's just a question of registering on the page (very straightforward, no need for email verification or anything like that), downloading the plugin-in and start playing songs.
I've created an AmigaOrg group and if we get at least ten members the first weekly Amiga.org music charts can be compiled. :-D
The AmigaOrg groupMy page on Audioscrobbler