The next speaker in this AoIR 2017 is my DMRC colleague Brenda Moon, whose focus is on reply chains on Twitter. There are a number of ways in which replies are chained together, and in fact the term 'reply tree' may be preferable to 'reply chains': there may be many replies to the same original tweet only, or a long dyadic interaction over a series of tweets, or various permutations between these two extremes.

The second paper in this AoIR 2017 session is by Daniela van Geenen and Mirko Schäfer, whose focus is on 'fake news' on Twitter. They began by tracking activities in the Dutch Twittersphere, and identified a number of communities within this userbase; within these communities, news and other information are being shared, and a process of social filtering takes place.

The next presenter at Future of Journalism 2017 is Anja Bechmann, who shifts our focus to news engagement within the private and semi-private spaces of Facebook. Here, the Facebook newsfeed serves at least in part also as a news platform, where news stories are shared and curated in a collaborative fashion. News, here, is variously a journalistically, user-, and algorithmically defined concept.

I'm the next presenter in this Future of Journalism 2017 session, and my presentation is below. A full paper is also available here.

Echo Chamber? What Echo Chamber? Reviewing the Evidence from Axel Bruns

The final speaker in this ECREA 2016 session is the great Luca Rossi, whose focus is on the Blockupy Frankfurt protests, directed against the inauguration of the new European Central Bank building. These protests used social media as a central means of generating engagement and activity.