comparing: several trance last.fm groups (to find bands + users)

Hello,

see full report here:
http://www.last.fm/user/trance-and-more/journal

What do you think?
P.S.
- the analysis is NOT based on group connections (which the group leader decides), but: on unique group artists (which are influenced by group members)
- only the image is automatically updating
- the table is cut + shows only the top artists


(click on picture to see more)