Public understanding of science has been replaced by engagement and participation, and science events, like festivals and science days, have become significant actors by offering direct contacts between scientists, public and policy-makers, as opportunities to engage and participate. After more than 20 years of festivals and events, the need for impact evidence is strong, although it is acknowledged that it will have to be based on complex data and observations. Many science events look for collaboration within the cultural sector. Social inclusion and participation in local and regional development are other important issues for the science events community.

In this book, Brian G. Southwell discusses how disparities in information-sharing arise and what can be done to alleviate them. In all sorts of ways and for all sorts of reasons, people have always sought to share information among their family and other social networks. However, this sharing has never been equal: inevitably, some people are better-informed than others and some are more socially-connected than others. At first glance, the plethora of communication tools and technologies available nowadays should help democratise information and reduce disparity but differences in how, when and with whom information is shared create conversation gaps and maintain inequalities. Southwell explores and catalogues information-sharing behaviours, discusses the factors that affect how and why we share information and addresses the questions of why disparities in information-sharing matter and what we can do about the gaps between ‘information-haves’ and ‘information have-nots’.

Over the past decades there has been an increasing recognition of the need to promote dialogue between science and society. Often this takes the form of formal processes, such as citizen’s juries, that are designed to allow the public to contribute their views on particular scientific research areas. But there are also many less formal mechanisms that promote a dialogue between science and society. This editorial considers science festivals and citizen science in this context and argues that we need a greater understanding of the potential impacts of these projects on the individuals involved, both scientists and the public.

Scientists often cite discrepancy between scientific values and news values as a primary factor in poor quality science reporting. The goal of this study was to understand how news values including conflict and controversy affect science communicators’ evaluation of press releases containing quotes from outside expert sources. Results of an online survey experiment suggest science communicators find a climate science press release with an outside expert quote that introduces controversy to be more newsworthy. However, when a science communicator attributes relatively high importance to reliability of facts as a guiding principle in story selection, this preference for controversy is reversed.

The Internet is increasingly considered as a legitimate source of information on scientific and technological topics. Lay individuals are increasingly using Internet sources to find information about new technological developments, but scientific communities might have a limited understanding of the nature of this content. In this paper we examine the nature of the content of information about fusion energy on the Internet. By means of a content and thematic analysis of a sample of English-, Spanish- and Portuguese-language web documents, we analyze the structural characteristics of the webs, characterize the presentation of nuclear fusion, and study the associations to nuclear fission and the main benefits and risks associated to fusion technologies in the Web. Our findings indicate that the information about fusion on the Internet is produced by a variety of actors (including private users via blogs), that almost half of the sample provided relevant technical information about nuclear fusion, that the majority of the web documents provided a positive portrayal of fusion energy (as a clean, safe and powerful energy technology), and that nuclear fusion was generally presented as a potential solution to world energy problems, as a key scientific challenge and as a superior alternative to nuclear fission. We discuss the results in terms of the role of Internet in science communication.

This issue of the Journal of Science Communication raises a number of questions about the ways that new scientific research emerges from research institutions and in particular the role played by scientists, press officers and journalists in this process. This is not to suggest that the public don't play an equally important role, and several articles in this issue raise questions about public engagement, but to explore the dynamics at play in one specific arena: that of news production. In this editorial I explore the increasing reliance of science journalists on public relations sources and consider what questions this raises for science communication.

We analysed the representations of science and of scientists at Jornal Nacional, the main Brazilian TV news. We carried out content and frames analysis, besides the lexical and semantic analysis of the transcriptions of the science and technology stories. Our results show a narrative that highlights the novelties and the epopee of the scientific advance, mainly in the health field. But to the emotional palette feelings of combat, anxiety and triumph were added. The face of the scientist presented by the TV news is mainly masculine, suggesting a stereotyped role of the male and female scientist: meanwhile men go out to literally explore other worlds, women take care of health and of the body.

Science communication as an interdisciplinary field of study has always been concerned with issues of knowledge utilisation. This theoretical paper focusses on the “knowledge” part of knowledge utilisation and provides a conceptual frame to distinguish between different types of knowledge in science-based practice. A practitioner’s knowledge store is portrayed as a dense set of personal knowledge, consisting of procedural knowledge, factual knowledge, potential factual knowledge and opinions/beliefs; the totality of which is continuously refined through more experiences and additional information received from people, documents or events. Implications for future studies of knowledge utilisation in science-based practices are highlighted and a number of questions posed to science communication as a profession.

There is growing competition among publicly funded scientific institutes and universities to attract staff, students, funding and research partners. As a result, there has been increased emphasis on science communication activities in research institutes over the past decade. But are institutes communicating science simply for the sake of improving the institute’s image? In this set of commentaries we explore the relationship between science communication and public relations (PR) activities, in an attempt to clarify what research institutes are actually doing. The overall opinion of the authors is that science communication activities are almost always a form of PR. The press release is still the most popular science communication and PR tool. There is however disagreement over the usefulness of the press release and whether or not gaining public attention is actually good for science.

Scientific institutions have for a long time known the importance of framing and owning stories about science They also know the effective way of communicating science in a press release This is part of the institution’s public relations. Enhanced competition among research institutions has led to a buildup of communicative competences and professionalization of public relations inside the institutions and the press release has become an integrated part of science communication from these institutions. Changing working conditions in the media, where fewer people have to publish more, have made press releases from trustworthy scientific institutions into free and easily copied content for the editors. In this commentary I investigate and discuss the communicative ecosystem of the university press release. I especially take a close look at the role of the critical and independent science journalist in relation to this corporate controlled communication