"This article reviews the state of research on citizen journalism over the past decade. The key areas covered include the ways traditional journalism has responded to this phenomenon from its early criticisms and later clumsy embrace of citizen content; the promises and perils of hyper-local citizen... journalism; the intersections of social media tools and individual citizen content creators such as those on blogs and Twitter; citizen journalism in the hands of activists; and the conditions for citizen reporting in authoritarian contexts. The article ends with recommendations for future research." (Abstract) more