This document provides an overview and agenda for a presentation on Amazon ElastiCache. The presentation will discuss why in-memory data stores are important for modern applications that require real-time performance. It will then introduce Amazon ElastiCache as a fully managed in-memory cache in the cloud, supporting the Redis and Memcached protocols. Finally, it will cover several common use cases for ElastiCache including caching, leaderboards, chat/messaging, ratings, and rate limiting.