Facebook is blurring the line between "personalization" and "social recommendations." The first tailors to your tastes. The latter influences your tastes. Clea

Facebook is blurring the line between "personalization" and "social recommendations." The first tailors to your tastes. The latter influences your tastes. Clearly, the latter is more powerful from a marketing standpoint because it attaches a recognizable face to a product, rather than an explanation (or no explanation) of why your seeing x result.