This guide is really good. You must first join Wealthy Affiliate to get cool support.

It was pretty good, taught me some things.

I don't use PPC as my primary source of traffic anymore though.

It's pretty good, but a little basic. Having a basic knowledge of PPC doesn't really help you though because you have to understand it well to survive these days.

PPC (Adwords) basically goes like this:
Keyword<-->Ad<-->Landing Page

They all have to be relevant to each other which usually means you have to have many landing pages to accomodate all your keywords.

Beating Adwords isn't bad, though. You really can't go wrong as it is a quality product.