||Epidemiologists face new opportunities and challenges as they communicate research results. Peer-reviewed journals, the first audience for research findings, are undergoing a revolution in content and format. Science reporters must select noteworthy advances from a deluge of reports. Epidemiologists must learn how to present their work to lay audiences, even when strong competing interests interfere with the clear exposition of a scientific consensus. Four experts bring diverse perspectives to assess the challenging environment and suggest new ways to respond. Myles Axton, Editor of Nature Genetics, discusses "The rapidly evolving scientific journal", a snapshotof how premier science journals experiment with features that blur olddistinctions: blogs, data repositories, standard-setting, and advance online publications. Axton, a geneticist and pioneer in genome-wide studies, highlights changes in communication across the biomedical sciences. Roni Rabin, a health reporter who has written for the New York Times, Washington Post, Newsday, and other publications, discusses "Choosing and telling science stories," a look at how science journalists synthesize meeting abstracts, articles, press releases and interviews with authors and commentators. Rabin, who also writes or Real Simple, More, and Glamour, explains how reports evolve in the web environment. Jennifer Loukissas, communications manager at the National Cancer Institute's Division of Cancer Epidemiologyand Genetics, discusses "When epidemiologists talk to press and public". Many epidemiology departments now train scientists to speakmore clearly to press and public. Loukissas evaluates recent examples to suggest which communication techniques work and how to teach them.Jonathan Samet, the Director of the USC Institute for Global Health, discusses "Communicating around conflict." Samet, an international authority on the effects of smoking and air pollution on health, considers real-world examples of meeting the communications challenge when political, commercial, or other interests work to obscure the information.