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Provides secondary teachers with time-saving tips, free downloadable teaching materials, in-depth articles and many other educational features.

A very good tutorial on science and electronics, physics, light and electrical optics.

Online book by Tony R. Kuphaldt on dc and ac electric circuits, semiconductor devices, analog and digital circuits.

index.html of: A collection of tutorials on Electronics, from the basics to University level; more than 400 URLs, in over 90 related subject areas.

This is an electronics forum where you can talk about anything related to circuit building, electronic projects and electrical repairs.

HowStuffWorks explains thousands of topics, from engines to lock-picking to ESP, with video and illustrations so you can learn how everything works.

Information, news and commentary on electronic design solutions, emerging technologies and new products for electronic engineers all over the world.

A UK Based Computer News and Reviews website with an active community and plenty of features.