AjaxLine

John Resig post an article about genetic A/B testing realization on JavaScript. He writes:

I've long been interested in the concept of A/B testing (Also called split testing). It's a simple concept that should sit will with most mathematically-inclined types: You have a baseline interface in which you adjust a single variable, at random, for each user that visits your application. After a given amount of time you should be able to see if certain variables affect how your users behave (either negatively or positively).

Source: John Resig's blog.