We live in an “Information Age” of overabundant data and lightning-fast transmission. Yet although information and knowledge represent key factors in most economic decisions, we often forget that data, information, and knowledge are products created and traded within the knowledge economy....

We have all been to Web sites that welcome us by name, offering us discounts, deals, or special access to content. For the most part, it feels good to be wanted—to be valued as a customer. But if we thought about it, we might realize that we've paid for this special status by turning over...