Google AdWords Website Optimizer

http://services.google.com/websiteoptimizer/index.html

According that page the website optimizer will:

"Take the guesswork out of landing page testing. Website Optimizer makes it easier to determine which version of your landing page users like best. Graphical reports show which page resulted in the highest conversion rate."

I signed up. When/if I get to take it for a spin I'll post my review/comments here.

My first reaction is it has the potential to be a great service when used in conjunction with your brain. Great marketers make automation work but automation won't make a great marketer.

Anyone have access to the service yet?