This document provides an overview of social games and alternative reality games as marketing tools. It describes key elements of social games like leaderboards and badges. It explains that gamers include both casual and hardcore segments across demographics. Social games can be categorized by platform, mode, setting, and genre. The document also outlines how brands can integrate advertising into games through displays, placements, and experiences. It defines alternative reality games as transmedia puzzles across platforms and outlines their story-based mechanics and vocabulary. Effectiveness can be measured through player engagement and publicity metrics.