Amazong - Java applet for playing amazons, with a strong computer player, written by Jens Lieberum. - http://swiss2.whosting.ch/jenslieb/amazong/amazong.html
Chess Variants - Amazons - Detailed history of the game, description of rules, and an old (1995) copy of Michael Keller's Windows implementation. - http://www.chessvariants.com/other.dir/amazons.html
Play-by-eMail Amazons - Play with 2 players from the standard starting position, or with 3-4 players with other starting positions. - http://www.gamerz.net/pbmserv/amazons.html
Amazon Unofficial Home Page - Small: includes a copy of the (1997) call for the first Amazon tournament for computer players, and several sample games played. - http://www.dc.uba.ar/people/materias/pf/amazons/
Talk by Martin Müller: Arrows: A Program that Plays Amazons - Streaming-video 30-minute talk held at MSRI during the Combinatorial Game Theory Research Workshop, July 24-28, 2000. Describes some of the issues involved in designing and theories behind building a reasonable Amazons computer player. - http://www.msri.org/publications/ln/msri/2000/gametheory/mueller/1/index.html