Mathematics

Acme Klein Bottle - Glass Klein bottles of all types.
www.kleinbottle.com/

The Adventures of Discriminant Boy - The bumbling Discriminant Boy is just the Zero mathematics needs.
imaginary.puzzling.org/

The Calculus Hater - Calculus - a bane to millions of students.
tetrakatus.org/wiki/index.php?title=Calculus_Hater%27s_Homepage

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.
arxiv.org/pdf/astro-ph/9912202

Fun With Math - Annotated links to math jokes, humor and mathematical recreations.
mathres.kevius.com/fun.html

Gary Ramseyer's First Internet Gallery of Statistics Jokes - Over 120k of jokes.
www.ilstu.edu/~gcramsey/Gallery.html

The Gnarly Gnews - Bi-monthly humorous math newsletter featuring interviews with famous mathematicians and scientists. Includes puzzles, limericks, and riddles.
www.gnarlymath.com/news/gnews1_1.html

How to Memorize Pi - Guidance on how to remember this diffuclt number to several decimal places.
www.freewebs.com/howtomemorizepi/

Icecube's Keep - A humorous and sometimes metaphysical look at the world of mathematics.
www.maths.tcd.ie/~icecube

International Number Registry - Register a real or natural number in your name or that of a friend. Supplies may be limited.
home.columbus.rr.com/realnumbers/

Ivars Peterson's MathTrek - Abbott and Costello's wacky math.
www.maa.org/mathland/mathtrek_3_27_00.html

Math Humor - Short page of jokes and lists.
www.stetson.edu/~efriedma/mathhumor.html

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.
www.mathacademy.com/pr/humor/index.asp

The Math Humor Page - A collection of math humor links.
www.dctech.com/physics/humor_math.php

Math Jokes - A collection of jokes about math and mathematicians.
www.math.ualberta.ca/~runde/jokes.html

Math Jokes - A page of math jokes.
www.sgoc.de/math.html

Mathematical and academic jokes - A collection of academic jokes with an emphasis towards mathematical ones.
www.markjoshi.com/Ashland/Jokes.html

Mathematical humour - Definitions, anecdotes, and limericks about math and mathematicians.
www.math.utah.edu/~cherk/mathjokes.html

36 Methods of Mathematical Proof - Check how many you've used in your lifetime.
jwilson.coe.uga.edu/EMT668/EMAT6680.F99/Challen/proof/proof.html

Mike Cook's Canonical List of Math Jokes - A collection of stories, limericks, questions and answers, and links.
www.cnonline.net/~TheCookieJar/math_jokes_01.html

007 News WWW Edition - This newsletter attempts to combine mathematics and humour.
www.math.toronto.edu/007/007-news.html

Statistics Jokes - Henry Bottomley's collection.
www.btinternet.com/~se16/hgb/statjoke.htm

Topology Cartoons - From the Topology Atlas.
at.yorku.ca/i/a/a/b/93.htm

A Treasury of Mathematical Humour - From the Oxford Mathematical Invariants Society.
users.ox.ac.uk/~invar/links/humour.html

The Weekly Puzzler - Not all of these are mathematical in nature, but many of them are.
www.cartalk.com/content/puzzler/

Why is the Mathematician So Messy? - Explain it if you can.
www.maa.org/features/mathchat/mathchat_5_6_99.html