The Joke Archives!
Recreation, Humor, Jokes, Collections - The Joke Archives. Humor collection with over a thousand categorized jokes.
http://www.joke-archives.com/
Collections
A large archive of jokes in 30 categories.
Recreation, Humor, Jokes, Collections - Jokes Database. A large archive of jokes in 30 categories.
http://jokes.boo.co.nz/
jokesnow.com
Recreation, Humor, Jokes, Collections - Jokes Now. A wide variety including elephant jokes and Clinton jokes.
http://www.jokesnow.com/