This document provides an overview of social media and strategies for using key platforms like Twitter, Facebook, and LinkedIn. It discusses what social media is, the importance of having a presence, and basics of each platform. For Twitter, it covers essential terms, best practices for using hashtags and retweeting. For Facebook, it discusses personal versus business pages, posting, and using groups. For LinkedIn, it summarizes the profile, connections, groups, and other features. It also includes tips on time investment and sample weekly checklists.