"The Nelio A/B Testing plugin is one of my favorite tools for WordPress because it looks wonderful on your dashboard and you don’t really have to learn much to get started with its powerful features. I like to consider Nelio as the Photoshop of the split testing tools, since it has tons of features. The main difference between Nelio and Photoshop — beyond the obvious — is that Nelio is easy to understand, whereas Photoshop can be a pain for beginners."