Platforms and publishers Rasmus Kleis Nielsen, keynote lecture at ECREA 2016 in Prague What does the continued, global rise of platforms like Google and Facebook mean for public communication in a new digital media environment, and for how we research and understand public communication? That is one of the central questions facing the field of communication research today. In this lecture, I examine the relationship between publishers and platforms as one key part of how the rise of digital intermediaries is playing out, and show how news media—like many others—are becoming simultaneously increasingly empowered by and dependent upon a small number of centrally placed and powerful platforms beyond their control (and with whom they compete for attention and advertising). I develop the notion of "platform power" to begin to capture key aspects of the enabling, generative, and productive power of platforms that set them apart from other actors. As a range of different intermediaries including search engines, social media, and messaging apps become more and more important in terms of how people access and find information online, and in turn restructure the digital media environment itself, communication research is faced with a set of interlocking questions concerning both our intellectual work and our public role. The intellectual questions include the need to understand how people use these platforms to engage with public communication, but also institutional questions including how different platforms engage with other players (like publishers) and how these other players in turn adapt to the rise of platforms, as well as political questions concerning the implications of their rise. The question concerning our public role concerns how existing ways of doing and communicating communication research fits with our ability to understand—and help others understand—an opaque and rapidly-evolving set of processes profoundly reshaping our media environments.