Google web optimizer is a very cumbersome tool. Vanity is designed to work seamlessly in a Ruby/Rails environment. It even has a built in dashboard and reportin

Google web optimizer is a very cumbersome tool. Vanity is designed to work seamlessly in a Ruby/Rails environment. It even has a built in dashboard and reporting system! Also, its server-side, not client-side, which can really be useful in most cases. I was very impressed with this when I saw it at RubyConf 09!