Somini Sengupta, writing for The New York Times, on our willingness to trade information for goods:
OUR browsing habits, search terms, e-mail communication — even our offering of our ZIP codes at the supermarket checkout — reveal bits of information that can be assembled by data companies, usually for the purpose of knowing what sorts of products we’re most likely to buy. The online advertising industry insists that the data is scrambled to make it impossible to identify individuals.