The Economist: WHEN a power cut interrupted this year’s Super Bowl, advertisers lit up. “Sending some LEDs to the @MBUSA Superdome right now,” tweeted Audi, swiftly plugging its own LED-accented car while taking a dig at its rival Mercedes, sponsor of the New Orleans Superdome. Tide, a detergent, came up with: “We can’t get your … Continue reading Less guff, more puff: Thanks to new digital tools, marketing is no longer voodoo