This meta-article aims to explore the role of uncertainty in knowing in informal science learning contexts. Subjects (N=2591) were sixth-graders from four countries. In addition to the correct and incorrect questionnaire alternatives, there was a "don't know" option to choose if uncertain of the answer. The unique path-analysis finding showed that the role of motivation was uniformly positive on correct and negative on uncertainty of answers. In all contexts the number of correct answers increased, incorrect and uncertain answers decreased. Interestingly, although there was no more difference in knowledge pro boys after the intervention, the girls were still more uncertain.

This book examines the media discourses about environmental pollution in Australia, China and Japan. The book's authors focus on the actors involved in discussions of risk versus those involved in responsibility for environmental pollution. The authors use novel and traditional means of analysis that combine techniques from a variety of disciplines to examine case studies of media discourse. The book provides an interesting, if at times simplistic, overview of the pollution issues facing each country. The conclusions made from the media analysis are relevant to those researching and practicing science communication in the context of such important environmental issues.

Web-based information and communication systems extend access for scientific communities to information such as publications or research data and provide the opportunity to collaborate with other scientists. Our comment gives a short sketch of the Information Service Sociology (short: FID Sociology), in which we aim at designing and developing such an information and communication infrastructure within the field of Sociology. To this end, it comprises (i) an approach for simplified publishing of open access publications, (ii) an integrated search across multiple sociological databases, and (iii) a collaboration platform to facilitate interaction and collaborations between members of the sociological community. Here, we mainly focus on the individual steps of the development of the collaboration platform.

This commentary introduces a preliminary conceptual framework for approaching putative effects of scholarly online systems on collaboration inside and outside of academia. The first part outlines a typology of scholarly online systems (SOS), i.e., the triad of specialised portals, specialised information services and scholarly online networks which is developed on the basis of nine German examples. In its second part, the commentary argues that we know little about collaborative scholarly community building by means of SOS. The commentary closes with some remarks on further research questions regarding the putative impact of such systems on science communication and scholarly community building.

While most researchers still primarily use emails and simple websites for professional communication, the number of specialised online portals, information services and scholarly social online networks is constantly growing. This development led to the 6th workshop organized by the team of openTA, an online portal for technology assessment. This issue of JCOM pools commentaries on the workshop which deal with questions such as: what are the criteria of successful digital infrastructures? Which potential for changing workflows or scholarly interaction and collaboration patterns do we ascribe to digital infrastructures?

This article reflects the results of the project “Open Access Statistics”, which was designed to collect standardized usage figures for scientific documents. The data gathered were primarily intended to provide impact values based on document usage for Open Access documents as these were excluded from databases used to provide citation based impact scores. The project also planned the implementation of more sophisticated procedures such as network analyses, but was confronted with complex legal requirements.

This comment focuses on an early case of an open infrastructure that emerged in the 1990s in international astronomy. It targets the reasons for this infrastructure's tremendous success and starts with a few comments on the term ‘digital infrastructure’. Subsequently, it provides a brief description of the most important components of the infrastructure in astronomy. In a third step, the use of one component — the arXiv, an open access repository for manuscripts — is analyzed. It concludes with some considerations about the success and acceptance of this infrastructure in astronomy.

Modern science communication has emerged as a field of study, a body of practice and a profession. In the last 60 years, we have seen the birth of interactive science centres, university courses, the first research into science communication, and a growth in employment by research institutions, universities, museums, science centres and industry. Now Ireland has told its story.

April marks a milestone in the history of JCOM, with the launch of new features for the International, English language journal alongside the launch of a sister journal, JCOM América Latina which will cater for the dynamic and fast growing Spanish and Portuguese speaking science communication community. Luisa Massarani, a long standing JCOM Editorial Board member, has led the development of JCOM América Latina and will act as the Editor for the new journal. JCOM and JCOM América Latina will work closely together, providing free, open access publishing for science communication research across the globe.

Science permeates nearly every facet of human life and civilization. However, in an age of media oversaturation, it has been increasingly easier for pseudoscientific information to be disseminated among the masses, especially by those with a political agenda. In his book, ‘Not a Scientist: How Politicians Mistake, Misrepresent, and Utterly Mangle Science’, author Dave Levitan creates a guidebook for spotting and debunking unscientific ideas in the political sphere, a vital tool in the Information Age.