Computer Humor
Classics from ancient nerd times.
Terribly sorry I've lost attributions on some of this non self-authored content, though much is now part of common lore.
Creators of C and Unix admit it was a hoax
So obvious ridiculous, they never imagined we'd take it seriously.

PC Error Message Haikus
So wabi-sabi.

Assembler OpCodes that Ought to Exists
EOU = End Of User

Evolution of a Professional Programmer
Laziness can be a virtue.

Classic Unix JARGON file
Massive glossary of humorous hacker terms built through the late 80s.