Today’s installment of the hilarious xkcd nerdy webcomic is especially fine, particularly if you’re the kind of person fascinated by the pictures of you screaming on a rollercoaster that you can buy after the ride. (I recently rode the coaster at the Santa Monica Pier — they have a little webcam in each car that films your whole journey and afterwards they’ll sell you a DVD of your screaming trip!).
See also:
Pi joke
Geeky comic strip uses Cory as the punchline
Ironic Internet malapropism grid
Nerd humor about Katamari Damacy
Sarcastic comic about computational linguistics (and emo kids)