IGN: Risk II - A preview by Stephen Butts. - http://pc.ign.com/articles/163/163205p1.html
Risk, As Defined by Andrew - Dedicated to the Hasbro version. Links and resources. - http://www.gilwood-cs.dsl.pipex.com/risk.htm
Lux Delux - Offers a variety of map plugins as well as online play with a ranking system. Available for Windows, Mac OS X, and Linux. Offers a forum, downloads, and purchasing information. (Shareware) - http://sillysoft.net/lux/
Risk - Clone for NeXTStep 3.x. - http://www.lorax.com/FreeStuff/Risk.html
Conquest - A Windows based game. Includes game and map downloads and purchasing information. - http://www.windowsgames.co.uk/conquest.html
GameSpot: Risk - Review by Josh Smith, [7.7/10]. "Hasbro Interactive has provided a near-perfect translation from the board game to the PlayStation." - http://www.gamespot.com/ps/puzzle/risk/review.html
John Dailey Software: Global War - An on-line game designed for three to six players. Offers purchasing information, screenshots, and a demo. - http://www.johndaileysoftware.com/products/bbsdoors/globalwar/
Case's Ladder - The ladder-competition for games played on Microsoft's ZONE. - http://www.igl.net/risk/
JTEG - Java client/server for Teg, a networked multi-player game clone. Has an FAQ, screenshots, and documentation. - http://jteg.sourceforge.net/
Mission Risk Headquarters - A risk style computer game. Up to 6 human or computer players. Offers downloads and purchasing information. - http://www.missionrisk.com/