Augmented reality (AR) uses digital information to enhance the real world by integrating the organic and digital. The document discusses how AR is currently used in mobile apps, marketing campaigns, and social media. It predicts that the AR market will grow significantly by 2014 and be adopted by the mass market within 5-10 years, driven by the explosion of smartphones and location-based services. Key applications mentioned include smart glasses, heads-up displays, and augmented advertising.