- A/B Testing Tutorial – read first
- Landing Page Tutorial
- Fivesecondtest – Landing page optimization
- Subintent – A/B testing + page optimization for best conversion rates
- VisualWebSiteOptimizer – A/B testing (split tests)
- Optimizely – A/B testing (split tests) made easy
- Evan’sAwesomeA/BTools – evan miller
- How not to run A/B testing -evan miller
- Silverback – usability testing for designers and developers
- FeedbackArmy – web usability testing
- 37Signals Advice on A/B testing