Within the past ten years, social media such as Twitter, Facebook, MySpace, YouTube, Flickr, and others have grown at a tremendous rate, enlisting an astronomical number of users. Social media have inevitably become an integral part of the contemporary classroom, of advertising and public relations industries, of political campaigning, and of numerous other aspects of our daily existence. Social Media: Usage and Impact, edited by Hana S. Noor Al-Deen and John Allen Hendricks, provides a comprehensive and scholarly analysis of social media. Designed as a reader for upper-level undergraduate...