Karbosguide.com - A complete illustrated guide to PC hardware. - http://www.karbosguide.com/
New Frontiers of Learning - Practical guidelines: delivery technologies, and Issues in Depth: hardware and software. - http://ibis.nott.ac.uk/guidelines/index.html
Hardware Design - A curriculum for a one semester course in Digital Design specifics. The site includes assorted information on generic assembler programming, basic curcuits, and binary devices. - http://www.escape.com/~beezle