After reading DaveN's post on why he prefers adCenter I decided to have a look at it again. 

As you can see they need to do some work before they gain a lot of credibility with SEO'.

Got a call today from a guy I know quite well after he sat through a pitch from an SEO company who were talking about Expert SEO Strategies and he wanted to know my opinion of what they said.

What am I suggesting?

Simply that you do not count people who were coming to your site anyway  even if they come from Google as part of your Google SEO success.

Why do I say this?

I am often told by people that 80% of there visitors come from google and that they would be out of business if Google dropped them.