Use A/B testing to monitor the impact of changes of web page elements that lead to more downloads, user contributed content, increased revenues, or whatever result you want to achieve. A/B testing involves testing two versions of a website - an A version (the control) and a B version (the variation) - with live traffic and measuring the effect each version has on your conversion rate. Results of A/B tests are used to make informed decisions about how to structure and present content on a site. There is no longer a need to guess what the site's user response is to changes, simply test and look at the trends in the data. The power and ease of use of the Optimizely framework is further enhanced using the Optimizely Drupal module. We will discuss the current and future integration of A/B testing with Drupal and Optimizely using the Optimizely Drupal module in detail. The presentation will end with a discussion of what future integration of Optimizely with Drupal is desired to further leverage the partnership.