I studied marketing at Harvard Business School. I'm a business professor at an online university where marketing is one of my specialties. I've written or coauthored seven business books that look at superior ways to accomplish marketing. I'm particularly interested in two aspects of marketing: Finding ways to add customers quickly and retain them, and minimizing the cost of acquiring and retaining customers. I see the solutions as usually coming from employing new kinds of information development activities, testing, and involving nontraditional marketing means in innovative business models.