This document discusses sustainable interpersonal communication strategies for MOOCs on a budget. It recommends using email for notifications and task management while also utilizing social networks like Twitter, Facebook, and Instagram. Specific suggestions include using Twitter for a backchannel during livestreams, enabling student questions and responses on forums, and using searchable archives like Twitter and Instagram. To manage multiple social accounts cost effectively, it recommends free tools like TweetDeck and the paid tool HootSuite. The document ends by asking for opinions on whether MOOCs need to limit tools to only those provided by the hosting platform.