A CUNY resource featuring math news, events, directories, problems, games and other resources
Math Resources On The World Wide Web
A fine listing of math-related sites, from Capital Community-Technical College
|Mathematics Miscellany and Puzzles
An entertaining site that will teach you how to add apples and oranges
The Geometry Junkyard
A ton of cool stuff, including the "Fuzzy and Sharp Rendering of Perfect Pattern"