This article is from the Stand-up Comedy FAQ, by Steven Rosenthal and Steve Silberberg (firstname.lastname@example.org) with numerous contributions by others.
A. Definitely not. Don't post them. Not only are jokes formulaic and
offensive to stand-ups, if you post them, you will be derided mercilessly
by the regulars. If you have an auto-erotic compulsion to tell jokes, or
want to steal jokes you can tell at the office to make people think you're
not the pathetic idiot you are, go to rec.humor and talk to those morons.