9% will occasionally contribute, edit etc.
1% of users can be denoted as those that contribute most of the content.
Read Dan Pontefract's fascinating article on 'participation inequality' in online communities.
Taken from http://farm5.static.flickr.com/5187/5594502016_61cd6f3c2d_b.jpg on 2011-4-06
Original URL - http://www.flickr.com/7695916@N08/5594502016/ created on 2011-04-05 13:32:38
Zane SelvansCC BY-NC-SA 2.0