"This is an inside joke from the webcomic XKCD. XKCD has its own simple but profound Rule 34 of the Internet,” which is that “If it exists, there is porn of it.” The unrelated Wolfram Rule 34 is a scientific axiom relating to properties of cellular automata. And the alt text in today's XKCD announced “I call Rule 34 on Wolfram's Rule 34”. So there you have it - now hurry up and register AmoebaPorn.net before it's too late."
Wolfram Rule 34 (Wikipedia) - Could It Be Porn Related?
E3 2009: Global Agenda
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