Mad Libs

Abiator's Madlib Asylum
Create a story by typing in words or using already created word templates.
http://www.berghuis.co.nz/abiator/wordzone/asylum.html

Javascript Adlib Games
Features eleven mad libs and three crossword puzzle games.
http://www.geocities.com/TimesSquare/Chamber/5269/index.html

Love Poem Generator
Fill in the blanks to create an original love poem.
http://www.links2love.com/poem_generator.htm

Mad Glibs
Online mad libs featuring a random word generator. Includes ability to create for use on websites.
http://www.madglibs.com/

Madlibs
Create new versions of book and song excerpts by filling in the blanks.
http://www.madlibs.org/

Pezhead Paul's Madlibs
Javascript versions featuring selection of stories and ability to print.
http://www.geocities.com/pezheadpaul/madlibs/

Word Libs
Categorized collection of Mad Lib stories, playable online or printable.
http://www.wordlibs.com/