Self-reference on the Web:

• This Is the Title of This Story, Which Is Also Found Several Times in the Story Itself
• Take the Self-referential aptitude test!
• Self-reproducing source code in various programming languages.
• Douglas Hofstadter's home page
• A funny essay by G. Christopher Hruska.
• John Case's page on machine self-reference
• The self-reference of the Web itself has been the subject of much parody.
• The subtleties of self-reference and apparent self-reference.