Electronics Links
All About Circuits
Comphrensive online textbook covering electricity and electronics with a good treatment of digital electronics.
Circuit Builder
This is a fun online circuit simulator. It takes a minute to get the idea.
Evil Mad Scientist Laboratories
Making the World a Better Place, One Evil Mad Scientist at a Time.
New projects posted every Wednesday.
Hobbytron Electronic Kits
Full line of electronic kits—everything from amps and audio kits to surveillance and clock kits.
JavaScript BASIC Interpreter
A very small, but functional BASIC interpreter. The part that makes it interesting is that it is written entirely in Javascript with the code available just by viewing the HTML on the site.
JPL Robotics
The Mobility & Robotic Systems Section at NASA - chartered to develop, mature, and bring to flight, robotics technology for in-situ exploration of the solar system.
Magic 1
Extensive documentation of the building of Magic 1. It has a custom CPU made out of TTL chips! There are photos, schematics - the works. Definitely worth checking out.
Parallax, Inc
Makers of the Basic Stamp family of microcontrollers and kits.
Quite BASIC
A pretty amazing, fairly complete online impletation of BASIC in the old, line-numbered GWBASIC style. It's robust - there are some good sample programs at the site with full color games etc.
Ramsey Electronics
From AM & FM Transmitters, Hobby Kits, Video Cameras, Time & Weather Products, Amateur Radio Gear, Mini-Kits, or just Neat Stuff, we make working with electronics not only fun, but also a great learning experience.
The Great Z80 Computer Project
Gives good detail on the first-person experience of building a complete Z80 based homebrew. An enjoyable narrative that can teach a lot.