Pay per click seems to be treated like some esoteric practice known only to those who divine the power of Google Adwords, Microsoft Ad Center and Yahoo Panama; a dark art that yields great profit, but is rarely understood.
The thing is... it's really not that complex.
This month we're going to go over a handful of ways to implement, analyze, improve, and analyze-some-more your PPC campaigns, including several of the "Lost Google Analytics Power User" chapters-pieces left out of the "Google Analytics Power User Guide".
Note: Due to our usual formatting, our article order this month isn't exactly "most basic to most complex", so I suggest starting at the bottom with SEOMoz's "10 Steps to Advanced Keyword Research".