Irmgard Wetzstein Department of Communication University of Vienna AustriaVerena Grubmüller-Régent University of Applied Sciences Vienna Austria Katharina Götsch University of Vienna AustriaKarin Rainer AEI Agency for European Integration and Economic Development Vienna, AustriaWetzstein, Grubmüller-Régent, Götsch, & Rainer 96 publications, pilot projects, and practical initiatives (Doan, Vo, & Collier, 2011;Johansson, Brynielsson, & Quijano, 2012;Nilsson et al., 2012;Rainer, Grubmüller, Pejic, Götsch, & Leitner, 2013). The link between social media and crises is not surprising, given the prominence that interactive Web 2.0 services have attained within the past decade. As Grubmüller, Götsch, and Krieger (2013) emphasize, microblogging services, such as Twitter, and social networks, such as Facebook, have taken on an immense role in peoples' daily lives-not only in the developed world. Easy and mobile accessibility has paved the way for the unprecedented success of social media, allowing "many-to-many" communication, and changing our notion of concepts such as sharing, open access, and privacy. As Omand, Bartlett, and Miller (2012, p. 9) pointed out, "We are transferring more and more of our lives onto vast digital social commons." This is also true for the expression of political opinions, mobilization, and community self-organization:technologies offer a wide range of possibilities for engagement, participation, communication and collaboration as they allow each and every individual with internet access to publish, share or edit comments, postings, videos, photos etc. This implies new possibilities of interaction, diverse news and opinions, engagement in the form of "one-toone, one-to-many and many-to-many communications." (Grubmüller et al., 2013, p. 2)