http://www.copyblogger.com/content-marketing-glossary/
A/B Testing (or Split-Testing)
Split-testing sounds like something you might find in a secret lab dealing with atoms, protons, and neutrons, but it’s actually a simple, methodical way to increase online conversions.
First, create two different versions of a landing page, where landing page 1 features headline A and landing page 2 features headline B. Then, send 50 percent of your traffic to version A, and 50 percent to version B.
Observe which version converts better and declare the winner. Take the winning landing page and test another element, such as with or without a video, different colored “Buy” buttons, or a simple sign-up form versus a complex one.
The elements you can split-test on a page are endless. And profitable. And the whole process, as you’ll probably discover, can become very addictive.
