The next AoIR 2015 paper is by Tim Highfield and me, and I'll add I've added our presentation slides below as soon as I can. The paper will also be a chapter in the forthcoming Routledge Companion to Social Media and Politics, which my colleagues Gunn Enli, Eli Skogerbø, Anders Larsson, Christian Christensen and I have edited – and which will appear in early 2016.