When it comes to marketing, almost nothing can surpass "coolness." While trends vanish, and hip is for hipsters, coolness can cut through almost any demographic. It's why everyone loves TED talks and no one disses the Beatles without looking utterly foolish.Paid content is not cool. At least not yet.Those of us in the business meet skepticism and outright disdain from time to time. But comedian Louis CK's recent online success may be an inflection point in the "paid content x coolness" bell curv...