Web Tune-Up Pros

Brad Callen, whom I consider either absolutely astute or a genius in the field of search engine optimization, has issued a free e-book called AdWords Made Easy, which you can download here.

Explains Brad:

I’m 100% confident in saying that this course is more comprehensive than "almost" all of the paid Adwords courses on the market. You’ll be very hard pressed to find this kind of high quality information being given away anywhere.