Peter Kraker is a postdoctoral researcher at Know-Center of Graz University of Technology and a 2013/14 Panton Fellow. He is an open science advocate collaborating with the Open Knowledge Foundation and the Open Access Network Austria. Katrin Weller is a postdoctoral researcher at GESIS Leibniz Institute for the Social Sciences, department of Computational Social Science. Isabella Peters is professor of web science at ZBW Leibniz Information Centre for Economics and Kiel University. Elisabeth Lex is assistant professor at Graz University of Technology and she heads the Social Computing research area at Know-Center GmbH.