
Looks complicated. It's not.
Point 1 — This is the traffic source, of course — using Google AdWords.
Point 2 — The Presell Page. (Can also be in the form of a "review" page … or even a hybrid — a presell cross review page.)
Point 3 — The vendor's sales letter. This is typically where you would normally direct your presell/review page traffic to — via your ClickBank affiliate link.
Point 4 — This is the ClickBank checkout page. It looks something similar to this:

Point 5 — This is were you can get a little … err … "grey hat". Where you totally bypass the vendor's sales page. You cut them right out of the loop.
The dynamics of how to do this is a little more advanced. But you get the idea, right?
Point 6 — This is an optional element … but it can be devastatingly effective. I cover an advanced method in Autoresponder Madness.
Point 7 — This is another optional element. Using "bonuses" as a leverage-point is a powerful conversion strategy — and one you should always try and implement (hint hint!).