The document summarizes David Mihm's presentation on long term trends in Google's local search algorithms and user experience. It discusses key algorithm updates like Panda, Penguin, Hummingbird and Pigeon that have increased the importance of brands and proximity. It also outlines major changes to the local search experience through features like Knowledge Graph, sentiment analysis, transactions and closing the loop. The presentation provides recommendations for local marketers to help generate knowledge cards, optimize listings and barnacle onto publishers through long term tactics.