Basic Electricity Tutorial: - Basic electricity tutorial: atoms and electrons, band theory, electrical current.
Circuit Exchange International: - Electronic and radio schematics; circuit analysis, design and theory; freeware and shareware downloads.
Conformity Magazine: - Electrical engineering trade magazine with information on EMC design, a series of articles on Maxwells Equations, and an archive of past articles.
Design Notes: - Design engineering information and resource site for engineers, students and hobbyists.
DigitalFilter.com: - Java Applets and Windows Applications to design/analyze digital filters, tutorials on digital signal processing, schematics.
Electronic Engineers: - Electronics theorems, formulae, links to engineering books, institutes and component makers.
Electronics 2000: - Electronics technical data, interactive calculators, software downloads, forum, a beginners guide and links.
Electronics Data Book: - A near complete reproduction of Allied Electronics Handbook. Electronic formulas and charts.
Engineering Reference: - Material dielectric properties, inductance table, high voltage electric breakdown information, constants, calculations and formulas.
The Hardware Book: - A collection of connector pinouts, cable and other hardware features, electronic circuits and tables.
High Frequency Electronics: - An online and paper journal with information on analog, digital, RF, microwave, millimeter-wave and lightwave technologies.
Lessons In Electric Circuits: - A six-volume set of free downloadable books covering many aspects of electricity and electronics. Suitable for 2-year college use.
Marc's Technical Pages: - Features electronic ideas, circuits, and hints including radio, antennae, and articles.
Material Properties: - a useful table for calculations about electrical properties of various materials.
RF Avenue Wireless Resources Directory: - A collection of RF and microwave resources for wireless communication engineers. Includes tutorials, theory, design aids, circuit diagrams and products.
The RF CAFE: - A collection of links to various application notes for different RF Vendors. Links to RF equations, technical data sheets, math notes, design ideas and useful RF design information.
Rob's Electronics Site: - Site dedicated to getting around the security bit of PAL/ GAL devices used in proprietary industrial electronics circuit boards.
Scotts Guide to Electronics: - An elementary guide to Electronics. Learn about components, circuits, and the use of electronics.