Alt-Tab: Chaos - The Battle of the Wizards: A tribute site containing commentary and rules of the game.
Anarchy: A 3d update of the very popular and enduring 1980's classic : Chaos by Julian Gollop.
Chaos: An Universe of Magic: Fan fiction with several chapters. Also offers history of the game, glossary, and game history.
Gooey Blob: Yahoo Groups mailing list for discussing the game and organising online battles. [Registration Required]