Rand Fishkin of Moz provides some great conversion optimization tips and strategy for Saas A/B split testing. Mentions include Kissmetrics and Mixpanel.

Ready to increase sale & leads?
Get my new ecommerce book at http://FreeEcommerceBook.com

Make more money from your website.
Get your conversion plan at http://alexdesigns.com

Learn more at http://marketingoptimization.tv