Circuit sources

Extreme Circuits - Extreme Circuits, site with great circuits

DIY electronic projects - Web site with free circuit diagrams and electronics projects.

Bowden's Hobby Circuits - A small collection of electronic circuits for the hobbyist or student. Site includes 100+ circuit diagrams with text descriptions, several electronic calculators, links to related sites, commercial kits and projects, newsgroups, and educational areas.

Sam Electronic Circuits - Electronic Circuits for the hobbyist.

Free Circuit Diagrams - Collection of about 300 simple circuit diagrams.

Circuit Exchange International - Site contains electronic and radio schematics, simulation and circuit design.

Aaron's Electronic Circuits - Aaron's Homepage is the personal website of Aaron Cake. It contains a wide variety of information related to his various interests. You'll find a massive electronic circuits archive as well as other electronics information, Mazda rotary (including my highly modified 2nd Gen RX-7), crazy and non-crazy projects, antique electronics, potato guns, assorted ramblings, auto show pictures a little about himself, an active community forum and everything in between.

Free circuits collection - New site with growing collection of circuit diagrams

Components and kits

Stepper Motor - Large selection of stepper motors that can be used in both commercial and industrial applications. Choose from a permanent magnet stepping motor, the hybrid, and variable reluctance stepper motors.

Electronic forums

Electronic theory and learning

Electric Hobby Projects - Resources for beginners circuits and children's experiments.