I recently recorded a fairly interesting podcast—really it's a three way conversation between myself, Gary Cohen and Jay Ehret. In it I elaborate a bit on what I call the "marketing spiral":
"Each time we act as evangelists for products, brands or services—then it becomes less about a purchase at the bottom of the funnel and more about perpetuating a constant state of “loops”. “Accidental marketers” have always existed, it’s just that the Web has given us more effective ways to influence our own consumer behavior—which makes things a little more challenging for those “professional marketers”.
The podcast can be listened to and downloaded here.
