Electronics
Houston, Edwin J.
Bob Zulinski
Louis Scharf
A First Course in Electrical and Computer Engineering
Don Johnson
Fundamentals of Electrical Engineering
Bill WIlson
Introduction to Physical Electronics
Yatindra Nath Singh
Pramod Agarwal
Tony R. Kuphaldt
Eric Coates
ROHM Semiconductor
All About Circuits
Classification of signals used in electrical engineering
Maxwell's equations in present form
Maxwell’s equations in relativistic times
Filipovic D. Miomir
Components of electronic devices
Bart van Zeghbroeck
Principles of Semiconductor Devices
Gilles Chagnon
Cours de génie électrique (pdf)
Xavier Cotton
Cours d'électronique et documentation
Jean-Jacques Rousseau
Physique et simulations numériques
Elektronique - Cours et montages d'électronique
Technologue pro, cours électricité électronique informatique
Marco Panareo
NCTU
Introduction to circuit theory
101science.com
BMET Wiki
Peter Millett
VIAS
Electronics and Electrical Engineering
Wikibooks
An introduction to electronics (pdf on demand)
MIT OpenCourseWare
U. S. Navy