This document provides summaries of digital marketing topics and innovative marketing campaigns, including: 1) An alternative reality game promoting The Dark Knight that engaged over 10 million online members in 380 cities. 2) A face tracking display in outdoor advertising that showed different images depending on whether a person was looking at or away from the display. 3) A Twitter-based contest by Philips for users to submit 140-character TV commercial ideas with the winning idea being produced and aired. 4) A campaign promoting airport shuttle buses over driving by installing a display of 50 cars fused together on the highway to the airport.