DigitalFord, Coke Like Facebook AdvertisingWhile some question the effectiveness of advertising through Facebook, two major American companies say it works. Coca-Cola and Ford recently told The Wall Street Journal that they've had success on the social network.By Justin Lafferty|June 20, 2012ShareBy Justin Lafferty|June 20, 2012SharePages: 1 2 Adweek Adweek