This document discusses rich media advertising, including an overview of different rich media ad formats and best practices. It provides statistics showing that search and display advertising make up over 50% of digital ad spending in India. Various rich media ad formats are defined, such as in-page ads, expanding ads, floating ads, transitional ads, takeover ads, mastheads, and engagement ads. Metrics for measuring the success of rich media ads such as click-through rate, interaction rate, and action rate are also discussed.