As both news and audiences are increasingly mobile, this introduction calls for intensified research into mobility as a core characteristic of journalism. This special issue explores the intersection of news with mobility in production, distribution and consumption. News has become mobile in a material sense as it is accessed on portable devices; and in a professional sense of being cut adrift from the business models which sustained it, challenged by peripheral actors and alternative news media, and embracing new technologies, new relationships with the audience and new political challenges to its status quo. One task is to adapt research techniques usually applied to fixed phenomena–or at least applied with the intention of fixing them–to something fluid. This is not impossible. All mobilities need an infrastructure on which to move, offering fixed points in a fluid world. Mobility offers critical questions of power and dominance of who is mobile, how, and under what circumstances; in this way, mobility becomes embodied. And the paradigm calls for research into the mobility of journalism and its interaction with similarly fluid, related actualities: blogs, smartphones, audiences, economics, advertisers, government and technology. Each interacts with journalism to deliver diverse realities.