Civic Education and Citizen Science : Definitions, Categories, Knowledge Representation / Luigi Ceccaroni, Anne Bowser, Peter Brenton -- More than Just Networking for Citizen Science : Examining Core Roles of Practitioner Organizations / Claudia Göbel, Jessica L Cappadonna, Gregory J Newman, Jian Zhang, Katrin Vohland -- SciStarter 2.0 : A Digital Platform to Foster and Study Sustained Engagement in Citizen Science / Catherine Hoffman, Caren B. Cooper, Eric B Kennedy, Mahmud Farooque, Darlene Cavalier -- What Drives Citizens to Engage in ICT-enabled Citizen Science? : Case Study of Online Amateur Weather Networks / Mohammad Gharesifard, Uta Wehn -- The Social Function of Citizen Science : Developing Researchers, Developing Citizens / Luis Arnoldo Ordóñez Vela, Enrico Bocciolesi, Giovanna Lombardi, Robin M. Urquhart -- Geographical Information Systems in Modern Citizen Science / Laia Subirats, Joana Simoes, Alexander Steblin -- Citizen Science and its Role in Sustainable Development : Status, Trends, Issues and Opportunities / Hai-Ying Liu, Mike Kobernus -- Social Context of Citizen Science Projects / Patricia Tiago -- Citizen Observatories as Advanced Learning Environments / Josep M. Mominó, Jaume Piera, Elena Jurado -- The Role of Citizen Science in Environmental Education : A Critical Exploration of the Environmental Citizen Science Experience / Ria Dunkley -- Citizen-driven Geographic Information Science / Thomas J. Lampoltshammer, Johannes Scholz -- Can Citizen Science Seriously Contribute to Policy Development? : A Decision Maker's View / Colin Chapman, Crona Judith Hodges -- Smart Activation of Citizens : Opportunities and Challenges for Scientific Research / Maria Gilda Pimentel Esteves, Jano Moreira de Souza, Alexandre Prestes Uchoa, Carla Viana Pereira, Marcio Antelio -- Surface Water Information Collection : Volunteers Keep the Great Lakes Great / Mark Gillingham