The website is a WordPress multisite that handles free content for it's readers on one hand, and premium content for it's premium users on the other hand. BUILTLEAN is one of the leading fitness, nutrition and life style websites if not worldwide, then at least from the US. The articles that Marc hosts on the website should be premium content alone, needless to say he's program helped a lot of people get into shape. Lots of technologies went in and out BuiltLean.com but most of the flow is created around Infusion Soft.
Negoita is the rare web developer that I can rely on to get the job done. He and his team do top notch work.