D2L

Hardware

1. Tom's Hardware Guide
2. How Stuff Works

Networking

Electronics

PICS

1. PIC Books and Tutorials
2. Reynold's Electronics PIC Tutorials
3. Nigel's PIC Tutorial
4. Using C for PICs
5. Simple PIC Projects using HiTech C

PCB

1. Express PCB -- PCB layout program.
2. Robot Room -- Lots of projects and a detailed description on making a PCB.
3. Eagle PCB -- PCB layout program that runs in Windows or Linux.

Logic

Grass Roots

1. Grass Roots Project Admin Page