The next speakers in our ECREA 2012 panel are Laura Ahva and Maria Hellman, whose interest is in the citizen eyewitnessing of crises. Witnessing has always been a central task of crisis journalism, but citizen-generated content is now increasingly important; citizen eyewitness images are especially central now, and are mediated from the sites of crises to the global audience. The Arab Spring provides a very useful recent example for this.

The next ECREA 2012 paper is presented by Nina Krüger, and focusses on brand communication activities during corporate crises. Enterprises are increasingly using social media for communication with their customers, of course, but to some extent still regard social media as black boxes; much more development – and research – needs to be done here.

The next presentation in this ECREA 2012 session is my co-authored paper with Jean Burgess on our research into the uses of Twitter in the 2011 Queensland floods and Christchurch earthquake. The slides are below, and audio will follow soon. I'm afraid the audio recording didn't work out. Feel free to listen to some of my other presentations on social media and crisis communication instead...

Analysing Twitter Activity in Crisis Contexts from Axel Bruns

The next ECREA 2012 session is on social media and crisis communication, and I have my final paper for this trip in this session as well. We start with Farida Vis, though, whose focus is on the use of Twitter by the London Metropolitan Police. This relates also to the emergence of data journalism, to the work to understand the positioning of Twitter in the wider mediasphere, and to the overall interest in the 'big data' question which has grown over the last year or so.

The second keynote speaker in this ECREA 2012 plenary is Daya Thussu, whose interest is in the internationalisation of media studies, with specific reference to China and India. Where we are today in terms of global media is a mix of material of Hollywood-imported or -inspired programming (in music, television, films, news, sports, children's programming, and also in online media); the US continues to dominate the entertainment industry, in particular.

ECREA 2012 continues with another round of keynotes, and the first speaker is Slavko Splichal. His interest is in the marketisation of the public sphere, and he begins by noting that the rise of the term 'public sphere' began only after the publication of an English translation of Habermas's work in the late 1980s. In addition, however, there are also many other theories of publics and public spheres; these receive considerably less exposure.

The final paper in our ECREA 2012 panel is presented by Jennifer Wladarsch, who focusses on the recent resignation of the German federal president following a corruption scandal. Scandals represent a specific constellation of actors – the scandalised actor themselves, the scandalising actors who point out and report the scandal, and the general public who respond (with outrage) to the scandal.

The next ECREA 2012 speakers are Hallvard Moe and Anders Larsson, who compare social media use in the Swedish, Norwegian, and Danish elections. They begin by noting that social media, and specific platforms, are deeply integrated with each other and with the wider mediasphere, and that this raises questions over the genres of use for each of these platforms, and the key actors which emerge in each case.