If you already know John, you'll know that his friends call him testing and tracking addict. John has probably tested a great deal more than the average Internet Marketer and he usually has at least half a dozen or so tests running and any given time.
John tests everything from specific traffic sources, linking strategies, email subject lines, responses from calls to action in resource boxes.. all the way through the sales process and beyond including back end sales and customer follow up.
If you are interested in learning new strategies, tactics and techniques and you would like to keep up with the latest internet marketing news, then John's Marketing Confidential Radio Show is definitely for you.