Has any one heard of a website which is like wikipedia, but in electronics? explains the basic stuff, briefly. Some times Wikipedia does not explain some details or does not have the entry for some concepts.
Google search just gives you loads of papers, but what I usually want is a basic definition.
Just one recommendation: Don´t rely on mosaic pieces found anywhere in the net.
Take a good and introductory textbook and sit down and read.
Good luck.