Guess what? After forever (it seems), Google has taken Google Website Optimizer out of beta. Now, anyone can access the Google Website Optimizer to increase your site's conversion rate. (Previously, you had to open a free AdWords account to use the product.)
If you haven't used Google Website Optimizer yet, perhaps the benefits of A/B Split & Multivariable Testing and Intuitive Reports will woo you. The goals, of course, are to increase sales, improve landing pages, get more leads, determine cost per acquisition (CPA), increase time spent on site, estimate guesswork from your site design, and more.
Forum discussion continues at DigitalPoint Forums.