A/B Testing has been used by a number of online entrepreneurs for a long time now. With the huge benefits that it promises, this is not that surprising.
Do you have a testing culture? Typically you know if you do, but may not know if you don't. Here is a quiz to find out:
Testing Culture Quiz: http://www.atlanticbt.com/blog/internet-marketing-testing-culture-quiz/
Via Martin (Marty) Smith, John van den Brink