Who are the biggest PPC or Adsense experts?

Perry Marshal - adwords
Chris Carpenter - adwords gcdetective.com
Chris Lee - AdWords Dominator
Simon Leung - adworder.com
Andrew Goodman - adwords -his books are absolutly friggen brilliant.
Carey Paris - he worked big ppc accounts at an ad agency and wrote
a 46 page ebook from what he learned that is extremely usefull. I found it as a WSO at Warriors Forum.

from reading most of the books by these people I learned on of the most important ways to get a real competative edge in adwords is to do more and deeper keyword research.

How to do that? you may be wondering, well see my new ebook! Nooo... I am kidding OK? Keyword elite just so does all this and more. I just got it 2 days ago. Well KE is an awesome tool BUT, coupled with the hours and hours of in depth videos which are all about using KE in the context of how it would be used just almost made my brain explode.