from: http://en.wikipedia.org/wiki/A/B_testing A/B testing, split testing, or bucket testing is a method of marketing testing by which a baseline control sample is compared to a variety of single-variable test samples in order to improve response rates. A classic direct mail tactic, this method has been recently adopted within the interactive space to test tactics such as banner ads, emails and landing pages. Significant improvements can be seen through testing elements like copy text, layouts, [ ... ]