I would like to present one of my recent projects: OMR (http://omr.musiqum.net). It is meant to analyse last.fm users’ profiles, and calculate the diversity of one’s music using our database.

Athough there is still a lot to improve, OMR gathered over 45,000 users, our database gathered information on almost 800,000 bands and 300,000 tags. For more information visit the OMR last.fm site.