Acme Klein Bottle - Glass Klein bottles of all types.

The Adventures of Discriminant Boy - The bumbling Discriminant Boy is just the Zero mathematics needs.

The Calculus Hater - Calculus - a bane to millions of students.

The Effects of Moore's Law and Slacking on Large Computations - We show that, in the context of Moore's Law, overall productivity can be increased for large enough computations by `slacking' or waiting for some period of time before purchasing a computer and beginning the calculation.

Fun With Math - Annotated links to math jokes, humor and mathematical recreations.

Gary Ramseyer's First Internet Gallery of Statistics Jokes - Over 120k of jokes.

The Gnarly Gnews - Bi-monthly humorous math newsletter featuring interviews with famous mathematicians and scientists. Includes puzzles, limericks, and riddles.

How to Memorize Pi - Guidance on how to remember this diffuclt number to several decimal places.

Icecube's Keep - A humorous and sometimes metaphysical look at the world of mathematics.

International Number Registry - Register a real or natural number in your name or that of a friend. Supplies may be limited.

Ivars Peterson's MathTrek - Abbott and Costello's wacky math.

Math Humor - Short page of jokes and lists.

Math Humor from Platonic Realms - Jokes, puns, and limericks having to do with mathematics. Also provides a link to the math humor e-book, Nowhere Dense. Content changes daily.

The Math Humor Page - A collection of math humor links.

Math Jokes - A collection of jokes about math and mathematicians.

Math Jokes - A page of math jokes.

Mathematical and academic jokes - A collection of academic jokes with an emphasis towards mathematical ones.

Mathematical humour - Definitions, anecdotes, and limericks about math and mathematicians.

36 Methods of Mathematical Proof - Check how many you've used in your lifetime.

Mike Cook's Canonical List of Math Jokes - A collection of stories, limericks, questions and answers, and links.

007 News WWW Edition - This newsletter attempts to combine mathematics and humour.

Statistics Jokes - Henry Bottomley's collection.

Topology Cartoons - From the Topology Atlas.

A Treasury of Mathematical Humour - From the Oxford Mathematical Invariants Society.

The Weekly Puzzler - Not all of these are mathematical in nature, but many of them are.

Why is the Mathematician So Messy? - Explain it if you can.