The document discusses the City of Tempe's use of social media for communication purposes. It explains that social media allows the city to reach audiences with accurate information as budgets for other communication methods decrease. The city created social media guidelines and plans before launching accounts. It discusses legal requirements around archiving posts and restrictions on employees' personal social media use. The city measures engagement on its YouTube, Facebook, Twitter, and other accounts. It emphasizes providing fast, relevant information and building conversations to engage audiences.