I've had a whole bunch of computer chess links lying around for a couple of months, so I thought I start putting them out there:

• A fantastic place to start: Louis Kessler's Chess and Computer Chess Links
  
• Ken, Unix and Games by Dennis Ritchie is about Unix guru Ken Thompson's involvement in computer games, including chess
  
• A long article in Wired by Rudy Chelminski, This Time It's Personal: Humankind battles to reclaim the chess-playing championship of the world.