Chip design, open source, and DIY: Part 1, Indie chip design...
KNJN.com - FX2 FPGA development boards (FPGA & ARM)
fpga4fun.com - How FPGAs work
CircuitLab - Editing "Unnamed Circuit"
Circuit Skills: Circuit Board Etching
Making your own printed circuit board can be a truly satisfying process, tying together electronics and the handmade craft of etching. It's the most accurate...
Prutchi.com - d.i.y. High-Power, Swappable-Head, UV/IR/Visible...
Volume I - DC : All About Circuits
The following demonstrations use a java applet that simulates electronic circuits. Click on the "" example for a brief summary of how the applet works. Or you can .