Renju

Bill's Pente Program
This is a unix program that plays the game of Pente. You can play against the computer, against another person sitting next to you, or against somebody on another computer across the internet.
http://www.igoweb.org/~wms/comp/pente/index.html

Pente Quinary
An informational site about the game Pente with rules and the club pente Vancouver.
http://members.fortunecity.com/pentequinary/pente/pentehome.html

The Renju International Federation
A professional variant of Go-Moku with more sophisticated rules. Rules, tutorial, resources, and archive of Renju World magazine. [English, Swedish]
http://www.renju.nu/