Virtual Laboratories in Probability and Statistics - Kyle Siegrist, Jason York

Statistical Glossary - Valerie J.Easton & John H. McColl (adapted for WWW by Stuart G. Young)

The CUWU Statistics Program (not ready yet)

Far out:

A book price comparison site that allows you to search for the best prices on Statistics books at online booksellers like Barnes and Noble, Amazon and many more by Chris Lindgren.

Statistics: The study of stability in variation by Jan de Leeuw of UCLA.

SurfStat by Keith Dear of the University of Newcastle.

Statistics 30X class notes by H. J. Newton, J. H. Carroll, N. Wang, and D. Whiting of Texas A&M.

Introduction to quantitative methods by Gene Glass of Arizona State University

Statistics lectures by Charles Mosier of Clarkson College

MAT220DX outline by Camille Biafore of New Hampshire College.

Humor
For the lighter side of statistics vist Gary Ramseyer's Gallery of Statistics Jokes