IBM's Alphaworks: Robocode
   Offers information, and downloads for Windows, Linux, and Mac.
   http://www.alphaworks.ibm.com/tech/robocode/

Java Robots Home Page
   Download, discussion and documentation.
   http://www.mobydisk.com/java/jrobots/

Yahoo! Groups: javajousters
   A group devoted to challenges among Java algorithms and Jrobots fights.
   http://games.groups.yahoo.com/group/javajousters/