Pinouts handbook
- Pin layouts for hardware, connectors and adaptors. Includes description of what each pin does, and the direction of data flow.
- http://pinouts.ru/

Trish's Escape from Hardware Hell
- Comprehensive, categorized computer hardware help site with many specific topic resources. Settings, specs, configs, reviews, tutorials, how to, faq, downloads and troubleshooting.
- http://hardwarehell.com

TechFest
- Created in order to make it easier to find good technical information on all topics relating to networking and computer technology.
- http://www.techfest.com