Juha Haataja is working on an essay about the weblogging community:
Currently there are three classes of bloggers: A, B and C class. The ‘A-class’ gathers most of the page-reads and referrals. There are perhaps 10-50 bloggers in this class. The ‘B-class’ consist of bloggers who once in a while get wider notice, perhaps thanks to the attention of an ‘A-class’ blogger. There may be 100-1000 bloggers in this category. And the ‘C-class’ contains therefore about 999000 bloggers (if the estimate of a million bloggers is correct).