1. [From the Usenet group alt.folklore.urban] To utter a posting on Usenet
designed to attract predictable responses or flames; or, the post itself.
Derives from the phrase "trolling for newbies" which in turn comes from
mainstream "trolling", a style of fishing in which one trails bait through
a likely spot hoping for a bite. The well-constructed troll is a post that
induces lots of newbies and flamers to make themselves look even more
clueless than they already do, while subtly conveying to the more savvy
and experienced that it is in fact a deliberate troll. If you don't fall
for the joke, you get to be in on it.

2. An individual who chronically trolls in sense 1; regularly posts
specious arguments, flames or personal attacks to a newsgroup, discussion
list, or in email for no other purpose than to annoy someone or disrupt a
discussion. Trolls are recognizable by the fact that the have no real
interest in learning about the topic at hand - they simply want to utter
flame bait. Like the ugly creatures they are named after, they exhibit no
redeeming characteristics, and as such, they are recognized as a lower
form of life on the net, as in, "Oh, ignore him, he's just a troll.

Website:  http://lowtech.org He likes making threats to 'fascists' (and that includes other lefties who may not follow his weird brand of 'anarchism'.)