http://services.google.com/websiteoptimizer/ "Google has released the third leg of the stool in its quest to dominate online marketing. Google Website Optimizer is a multivariate testing application that allows users to test elements and combinations of elements in a website or landing page. The goal is increased conversions, and of course AdWords market share." Saw this on Slashdot this morning, anyone try it yet?
Yes. Been using it for 6 months now. It's great. Take a look at some resources over here: http://www.grokdotcom.com/googlewebsiteoptimizer/