Well, let me see:
Weregeek,
The Order of the Stick and
Penny Arcade also had good tributes.
xkcd's is cool too.
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'We're all mad here. I'm mad, you're mad." [said the Cat.]
"How do you know I'm mad?" said Alice.
"You must be," said the Cat, "Or you wouldn't have come here."
- Lewis Carroll, Alice's Adventures In Wonderland