multivariate testing

Apologies for posting this same conversation to two groups, I couldn't determine the best place for this conversation to take place as it is relevant to both groups.

I wanted to start a discussion on best practices for optimizing content stored within Drupal for click-throughs and conversions. I am familiar with external tools like Optimizely and Google Analytics Content Experiments, and use them regularly for A/B and multivariate testing. They have not proven great, though, when wanting to automate testing of content within the CMS.

Here is a general use case:

I haven't seen any sign of an official Test&Target integration for Drupal. Having one would be very useful. Here are my initial thoughts on how it could work.

Here's the API and integration guide: http://www.scribd.com/doc/37593903/Test-and-Target-Integration-Guide-2010

1. You can have MBoxes to replace whole pages. This is handy for testing different splash or landing pages. Drupal integration could offer you the chance to put 2 or more paths in and then render access to any of them as a test.

After seeing a Google Website Optimizer module for WordPress I started looking for a similar module for Drupal. I came across the following Google Website Optimizer module. It is useful for multivariate testing. I was wondering what other SEOs/Interactive Designers are using for optimizing website content and improving website usability? Are there any other modules that offer similar or added benefits?