Matt Carlson is associate professor of communication at Saint Louis University. His work examines the contested cultural construction of journalism. He is author of On the Condition of Anonymity: Unnamed Sources and the Battle for Journalism and co-editor of Journalism, Sources, and Credibility: New Perspectives.　

Seth C. Lewis is an assistant professor and the Mitchell V. Charnley Fellow in the School of Journalism and Mass Communication at the University of Minnesota. He studies the changing nature of journalism amid the rise of sociotechnical phenomena such as big data, social media, and digital audience analytics.

Introduction - The Many Boundaries of Journalism Part I: Professionalism, Norms and Boundaries 1. Out of Bounds: Professional Norms as Boundary Markers 2. Nothing But The Truth: Redrafting the Journalistic Boundary of Verification 3. Divided we stand: Blurred Boundaries in Argentine Journalism 4. The Wall Becomes a Curtain: Revisiting Journalism's News-Advertising Boundary 5. Creating Proper Distance through Networked Infrastructure: Examining Google Glass for Evidence of Moral, Journalistic Witnessing 6. Hard News/Soft News: The Hierarchy of Genres and the Boundaries of the Profession 7. Internal Boundaries: The Stratification of the Journalistic Collective Part II: Encountering Non-Journalistic Actors in Newsmaking 8. Journalism Beyond the Boundaries: the Collective Construction of News Narratives 9. Redrawing Borders from Within: Commenting on News Stories as Boundary Work 10. Resisting Epistemologies of User-Generated Content? Cooptation, Segregation and the Boundaries of Journalism 11. NGOs as Journalistic Entities: The Possibilities, Problems and Limits of Boundary Crossing 12. Drawing Boundary Lines Between Journalism and Sociology, 1895-1999 Epilogue - Studying Boundaries of Journalism: Where Do We Go From Here?