You’ve all seen trolls, and know that they come in various guises. You might even be a troll yourself. To find out which sort, some bright spark has put together the Internet Message Board Wandering Monster Table, an essential resource for any blogger with comments.
(Via A.E. Brain.)

Flame Warriors (Link) is a much better resource, in my opinion.
You might not like this one (Link), however.
I believe I’ve identified another species of troll, the Masochist Troll.
The masochist troll posts stupid and/or inane comments, then reads the insults hurled his way as he plays yankee-my-wankee.