The New Republic Online: Blinkered: "Taken together, these literatures demonstrate the importance of unconscious cognition, but their findings are obscured rather than elucidated by Gladwell's parade of poorly understood yarns. He wants to tell stories rather than to analyze a phenomenon. He tells them well enough, if you can stand the style. (Blink is written like a book intended for people who do not read books.) And there are interesting and even illuminating facts scattered here and there, such as the blindfold 'sip' test that led Coca-Cola into the disastrous error of changing the formula for Coke so that it would taste more like Pepsi. As Gladwell explains, people do not decide what food or beverage to buy solely on the basis of taste, let alone taste in the artificial setting of a blindfold test; the taste of a food or a drink is influenced by its visual properties. So that was a case in which less information really was less, and not more. And of course he is right that we may drown in information, so that to know less about a situation may sometimes be to know more about it. It is a lesson he should have taken to heart."
Richard A. Posner dissects Gladwell's new book (which I expect to enjoy reading anyway...).