How to Electronics: Intermediate/Advanced

I wanted to create order from the many instructables I have in my favourites list.  So these guides are mainly for my benefit on the topics I want to learn more from.  I hope you will enjoy the ones I have chosen by these very talented instructables members!  These are in no particular order.  This is another one on electronics a bit more advanced than my previous guide.  Here are some of my other guides: How to Steampunk, How to Electronics: Easy, How to Arduino, How to Power Supply, How to Amplify.