This document discusses using social media, especially Twitter and Facebook, for political advocacy and social good. It notes that Facebook dominates in terms of number of users, including 50% of users accessing Facebook via mobile. Twitter is also widely used, with 60% of users on mobile. The document provides information on profiles, following others, tweets and retweets, hashtags, and mentions on Twitter. It explains how these features can increase reach and engagement when used for advocacy on issues and events.