Social-media stars are advertising’s darlings By: MarketWatch January 15, 2011 at 00:00 AM EST The time-honored tradition of celebrity spokespersons is being turned on its head, writes Larry Kramer. Read More >> Related Stocks: CBS Corp General Electric Google, Inc. Hanesbrands Inc Logitech Int S.A. Microsoft Nestle Sa ADR Nike Inc PepsiCo Sony Corp Time Warner Walt Disney