Helis.com - Helicopter History SiteHelicopter reference site providing helicopter factsheets and lots of information on the history of helicopter flight and development, how they fly, operating helicopters, manufacturers, operations as well as additional heli stories, media and other features.
GunCopter.com - Military HelicoptersFact sheets and photo galleries for a selection of military helicopters, focusing on army attack helicopters and other gunships, including Apache, Cobra, Tiger, Rooivalk, Lynx, Hind, Havoc, Mangusta, Gazelle, etc.
Voodoo World - AH-64 ApacheBoeing AH-64 Apache page on Voodoo-World.cz with information about the Apache in general, AH-64A, AH-64D Longbow and WAH-64 Apache AH.Mk.1. Includes picture and video gallery
http://www.voodoo-world.cz/ah64/ - report broken - 173 hits since 6 Feb 2010