Klin Zha (Klingon Chess)
The Authorized Klin Zha Homepage (http://www.tasigh.org/takzh/) | Downloadable Rules (http://ikvdevisor.com/files/klinzip.zip)

Chess

Tournament Rules For Three-Dimensional Chess (http://private.addcom.de/meder/3dschach/chess3d.htm)

RISK
Rules (http://www.centralconnector.com/GAMES/RISK.htm) | More Rules (http://boardgames.about.com/od/riskrules/) | LOTR RISK Rules (http://lordoftheringsrisk.com/rules.html) | HASBRO RISK FAQ (http://www.hasbro.com/risk/pl/page.faq/dn/default.cfm)

Axis & Allies
Unofficial Info Site (http://www.axisandallies.org/) | International Axis and Allies Players Association (http://www.axisandallies.net/) | FAQ (http://www.faqs.org/faqs/games/axis%2Ballies/)