Message Boards

The best website Forum and Message Boards dedicated to Chess Computers are :-

Kurt’s Schachcomputer Homepage (German)
Ismenio Sousa’s website - ChessComputers.org (USA)
Schachcomputer.info Forum (German)

Chess computer content can also be found at

Computer Chess Club (USA)

General Chess Computer Websites

Kurt’s Schachcomputer Homepage (German language)
Schachcomputer.info (German)
Wiki Encyclopaedia at (Schachcomputer.info) - All Articles Index
CVSN http://www.csvn.nl/ (Dutch - Computer Chess general)
http://www.alte-schachcomputer.de/ (German)
Ismenio Sousa’s website - ChessComputers.org (USA)
http://www.zanchetta.net/echecs/ (French + English)
http://www.elpeon.com/index.php (German - Ebay auction info)
http://www.meca-web.es/ (Spanish)
http://electronicchess.free.fr/index-UK.html (French + English)
http://www.anacadigital.com/index.html (Spanish)

Other Collection Websites

Steve Blincoe’s Photograph Collection (USA)
Tom Luif (Dutch and English)
Hein Veldhuis (Dutch)
Mychess - Olivier Zimmer (French)
Tom’s Chess Computer Collection (Australian) - Thomas McBurney

Manuals

http://www.zanchetta.net/echecs/ (English/German/French manual scans)
http://www.alte-schachcomputer.de/ (German manual scans)
Classic Chess & Games (English manuals - USA retailer)
 

Chess Computer Retailers and “Markets”

Eric Hallsworth and Selective Search
Doska
Schachboerse.de - Steffen Scholz