It's a paid product, and they have a series of written manuals + a video series on how to do PPC marketing with affiliate products. Specifically, it's how to use Keyword Spy to get the results you want in affiliate marketing. I was pretty impressed, especially in the beginning.
The problem, though, is that they created it in 2010 and haven't updated. As a result, they talk about researching ClickBank products and doing some direct linking to them. Obviously, AdWords don't like this no mo'.
So, here's my question(s):
1. Has anyone had experience with Keyword Spy? What do you think? Is it still viable?
2. What are the tools you use to research affiliate offers, generate keywords, create strong ads?
3. Do you have any other suggestions for learning affiliate marketing using PPC, aside from networking and trial/error?