Circuit Sage - Contains information, links, and tools to analyze and synthesize transmission lines.
EE Compendium - A collection of information for electronics engineers, students, and hobbyists. Includes books and publications, as well as information on components and tools.
Electrical Zone - Includes links to electrical industry sites, news releases and technical articles.
EMC Group - A research group working in the field of electromagnetic compatibility at Polytechnic of Milan University, Milan, Italy.
IHS Engineering - Databases of worldwide industry standards, active and passive components, industrial catalogs, government parts and logistics, commercial parts information, military specifications and standards, federal documents, and diminishing manufacturing sources.