Resources

• ABTests: Site for sharing and learning from other people's A/B tests.
• A/B testing and statistical significance: read this to understand what the numbers mean
• The Four Steps to the Epiphany: Customer development and EDD go hand in hand
• Effective A/B Testing
• [Customer Development Methodology](http://www.slideshare.net/venturehacks/customer-development-methodology-presentation Steve Blank's presentation on Customer Development)
• Lean startup tools for Rails apps
• The what and why of product experimentation at Twitter

Blog Posts

• http://blog.apartmentlist.com/vanity-ab-testing/
• http://www.iseff.com/post/287919069/using-vanity-for-rails-a-b-testing
• http://viget.com/extend/user-goal-tracking-in-rails-with-vanity-and-google-analytics
• http://josephsofaer.tumblr.com/post/13230028978/a-b-testing-emails-with-vanity