I was reading Supercrunchers [1], and came across Omniture's Offermatica
[2].
Offermatica does real time randomization and analysis of traffic from the
variants of the page. The randomization is important here for validity of
the results. The analysis is per session.
For instance, you want to see, how search box placement or font size affects
product sales. Make the layouts to be tested and see, which one increases
sales in real time.
