Hardware
HardwareCentral - http://www.hardwarecentral.com
Featuring over 600 pages of hardware information, including advice on system optimization, troubleshooting information, reviews, general data and more.
Karbos Guide - http://www.karbosguide.com/
A complete illustrated guide to the PC hardware, logic and architecture. Includes 500 easy-read articles about the modern PC.
Sealed Server - http://www.germane.com/
Rugged mobile, waterproof and embedded computer systems. Germane Systems designs, tests and manufactures COTS rugged solutions adapted to your requirements.