Search dominated mobile global advertising revenue in 2012 -- representing 52.8%, or $4.7 billion, according to the Interactive Advertising Bureau (IAB). In 2013, the numbers continue to rise. Education plays a major role. Companies finally got smart, stepped up, and began educating marketers on how to improve mobile campaigns. The education, however, doesn't always come from a book. Sometimes it comes from trial and error and following the leaders, such as Facebook -- which reported a 75% surge in mobile ad revenue in three months.