Absolute Robeo - http://www.absoluterobeo.com/
Features humorous stories, polls, quizzes, videos and ecards. Includes photos, mailing list and panoramic images.
Funny Times - http://www.funnytimes.com/
Monthly print magazine featuring cartoons and political humor. Includes cartoons, free sample issue ordering, subscription info and FAQ, magazine excerpts, ecards and online store.
Prankified - http://www.prankified.com/
Database of visitor submitted pranks categorized by topic. Includes games.