Founder @ Convertify - Conversion Rate Optimization Agency.
I have personally run over 250 Experiments for 50+ Clients, generating $1M+ in additional revenues for clients.
Certified Partner of VWO, Optimizely & Convert Experiments. Certified by Marketing Experiments in Optimization.
Here's an article I wrote for Optimizely: http://blog.optimizely.com/2013/06/19/why-we-switched-to-optimizely/