Richard,

Thanks for your kind words. 

My EE content creator fellowship ended in August, 2016. As far as I know, KA is not creating additional material for the EE subject area. 

References for further study:

EdX MIT 6.002x taped lectures:
https://www.edx.org/course/circuits-electronics-1-basic-circuit-mitx-6-002-1x-0

https://www.edx.org/course/circuits-electronics-2-amplification-mitx-6-002-2x-0

https://www.edx.org/course/circuits-electronics-3-applications-mitx-6-002-3x-0

If you watch these videos 15 minutes at a time, it will seem sort of like using KA! Maybe. Most other EE teaching web sites are targeted at the advanced hobbyist level, which does not sound like what you're looking for. (Allaboutcircuits.com for example). I certainly do not recommend Wikipedia as a learning tool. Way too dense and turgid.

Books: The textbook by MIT Professor Agarwal is quite good, Foundations of Analog and Digital Circuit Design.

Another book I admire is Thomas H. Lee Design of Radio-Frequency Integrated Circuits. 

My KA fellowship is completed, and I have continued to work on KA-style explanations of EE concepts on my own web site, http://spinningnumbers.org. All the existing videos have been cross-linked, and all the articles I wrote for KA have been tweaked and spruced up to be even better. The cool new tool available at spinningnumbers.org is a circuit simulator where you can draw and simulate circuits as you go along. http://spinningnumbers.org/circuit-sandbox/index.html

I'm currently working on introductory concepts to fill in some things most asked about by first-time learners. Then I will turn my attention to advanced topics in filtering, signal processing, and digital design.