https://www.youtube.com/user/bigbadtech
All in one electronics guide (A good basic electronics book)
Embedded.com - Small is Beautiful
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electronicspoint
Tutorial: Improving the transient immunity of your microcontroller-based embedded design - Part 1
Tutorial: Improving the transient immunity of your microcontroller-based embedded design - Part 2
Tutorial: Improving the transient immunity of your microcontroller-based embedded design - Part 3
(If the above links are not valid, search for them on www.embedded.com )
Decompiling the ARM architecture code
(If the above link is not valid, search for it on www.embedded.com )