From our syllabus, the most likely relevant articles are Chafee & Metzger, Papacharissi, Hesmondalgh, Anderson, Knight Foundation, Fenton, and the Project for Excellence in Journalism.
For supplemental readings, you might look at the following:
Deuze, Mark (2003) “The Web and its Journalisms: Considering the Consequences of Different Types of Newsmedia Online.” New Media & Society v5n2: 203-230.
Mark Deuze, Axel Bruns, and Christoph Neuberger. (2007). “Preparing for an Age of Participatory News, Journalism Practice,” 1(3), 322-338.
Zizi Papacharissi, ed., Journalism and Citizenship: New Agendas in Communication (2009)
Howard Tumber (2001) “Democracy in the Information Age: The Role of the Fourth Estate in cyberspace” Information, Communication & Society v4n1: 95-112.
Darin Barney, “The multiplication of news platforms: the ‘privatization’ of the media,” Policy Options, February 2006, 63-66.
Pew Research, “Understanding the Participatory News Consumer” March 2010