Excerpt: The technology is known as augmented reality, and it's taking hold across the marketing world as consumer brands as varied as Kia Motors, Nestlé, and Frito-Lay look for newfangled ways to push snack foods, cereal, and automobiles to a younger demographic. The hope for marketers is that augmented reality will engage an audience more deeply than other forms of social media, such as viral videos, fan pages on Facebook, or Twitter followings. The total market for augmented reality is expected to hit $350 million in 2014, up from about $6 million in 2008, according to ABI Research. Of the total five years from now, almost $170 million will come from mobile augmented reality advertising. - David Berkowitz