This document discusses emerging media such as the internet, mobile phones, and new forms of digital advertising. It provides background on the history and growth of digital media, including the development of internet advertising through companies like Google. The document also outlines different types of online and mobile advertisements, as well as common revenue models for digital advertising like cost per mille, cost per click, and cost per action. Finally, it summarizes a new study that found mobile display advertising generally outperforms online display advertising when best practices are followed.