Joke websites

Please ONLY post here if you know any good websites which tell you good riddles and jokes.
Please try not to submit a website which a member has already suggested, though you will not be punished doing so.

I will start you off:

http://kids.yahoo.com/jokes
http://www.bconnex.net/~kidworld/weekjoke.htm
http://holidays.kaboose.com/halloween-games-jokes.html
http://www.justriddlesandmore.com/kidsriddles.html
http://www.bestfamilyadvice.com/riddles.html
http://www.eia.doe.gov/kids/energy_fungames/riddles/

Here's a joke website, though some of the jokes are a bit rude..
http://jokes4all.net/

A riddle website:
http://riddles.com/all-kinds-of-riddles/riddles/