This document provides an overview of incorporating social media into exercise design. It discusses using social media for different types of exercises including discussion-based exercises like seminars and workshops, as well as operations-based exercises like drills and full-scale exercises. Considerations for using open and closed social media systems are presented. The document also provides examples of social media platforms and tools that can be used to design exercises, as well as resources and past incidents that can be used for exercise injects. Evaluation methods like online surveys are suggested.