Coca-Cola's new social media campaign, "Open Happiness," dispatches "Happiness Ambassadors" around the world to everywhere Coke is sold, with the mission to document what makes people happy. The company's goal is to generate buzz in social media like Twitter and Facebook (and, in turn, sell more Coke). But Amy Bruckman, associate professor in Interactive Computing, wonders if happiness is enough of a hook to lure people in. Source: AJC.com