3-D Chess Federation
A place for those who are especially interested in 3-D (by contrast to ordinary 2-D) chess variants. Offers information, rules, downloads, photos and diagrams.
Chess Variant Applets
One player chess variant java applets of a large number of games but not of high difficulty. These works of Dr. Ed Friedlander recently became dual-published as a section of The Chess Variant Pages as well.
Color Coded Chess And Puzzles
Contains four-player chess games as well as checkers, puzzles and manalas.
The Chess Variant Pages
Comprehensive, general site with downloads, rules, information, histories and links for a large number of chess variants.
The Symmetrical Chess Collection
Contains games for download and links.