Cantu Jokes
   Frequently updated jokes that you can safely use without fear of copyright infringement.
   http://humormall.com/jokes/freejokes.shtml

Comedy Group
   Original short movies of stand-up jokes.
   http://www.comedygroup.com/

GirlyRose.com Jokes Portal
   A large collection of jokes sorted in categories, Includes some of the internets funiest pictures.
   http://www.girlyrose.com/jokes

Humor and Joke portal
   A good selection of jokes. Also encourages joke submissions from visitors.
   http://www.2laugh.com

Humor of Phil Kaufman
   One-liners, stories and links. Original content.
   http://www.jokemeister.iwarp.com/

Pigboy
   Collection of categorised jokes and original humour articles. Includes a forum, regular mailing list and an agony uncle.
   http://www.pigboy.co.uk/

The Laugh Lab
   A scientific experiment undertaken by the University of Hertfordshire in the UK to find the world's funniest joke.
   http://www.laughlab.co.uk/

Tony Follari
   Original jokes arranged by category.
   http://www.tonyfollari.com/

gocount.com
   Providing daily original jokes on current news. Updated daily.
   http://www.gocount.com/