Humor
Bartender Magic - http://bartendermagic.com/
Includes a list of pranks and magic tricks that can be used on people in a variety of different settings.
Endeneu - http://www.endeneu.com/badpoem/
Provides spoofs and comedic versions of poems as well as user submitted comedy poetry.
Poet's Day - http://www.poetsday.com/
Advocate of Poets day and contains humor poetry as well as links to other related resources.