Here is another 2 variations on my GSB homepage.
The new version has some extra content at the bottom, I measured how much of a boost that gave to the percentage of people grabbing the demo. It is a small, but noticeable difference.
GWO says its within error margins, but over 10 days it’s consistantly outperformed, so I consider it worth switching to. Say GSB earns $50,000 over a year, 2.28% improvement is $1,140, for changing some html. Now you see why I do this stuff :D Imagine how much a change to amazons home page must earn them…