Genetify (http://news.ycombinator.com/item?id=376331 http://news.ycombinator.com/item?id=376331) is one system that was recently open-sourced. A good discussio

Genetify (http://news.ycombinator.com/item?id=376331 http://news.ycombinator.com/item?id=376331) is one system that was recently open-sourced. A good discussion about it is on John Resig's site: http://ejohn.org/blog/genetic-ab-testing-with-javascript/ http://ejohn.org/blog/genetic-ab-testing-with-javascript/