Primordial Soup Kitchen
Gallery of images and movies that illustrate the ability of local parallel update rules to generate spatial structure from disordered initial states.
psoup.math.wisc.edu/kitchen.html
Cellular Automata Tutorial
Introduction to the function and principles of cellular automata.
www.ifs.tuwien.ac.at/~aschatt/info/ca/ca.html
George Maydwell's Cellular Automata Page
Home page for SARCASim, a fast programmable cellular automata simulation program for Windows, powerful enough to simulate hexagonal cellular automata.
www.collidoscope.com/ca
Cellsprings/Web
A Java 2D cellular automaton explorer.
jmge.net/java/csprings