–Conference Proceedings– 6th Open Knowledge Conference (OKCon) 2011 30th June & 1st July, 2011 Preface The 6th Annual Open Knowledge Conference (OKCon) will take place on 30th June – 1st July 2011 in Berlin. OKCon is a wide-ranging conference that brings together individuals and organizations from across the open knowledge spectrum for two days of presentations, workshops and exchange of ideas. Open knowledge promises significant social and economic benefits in a wide range of areas from governance to science, culture to technology. Open- ing up access to content and data can radically increase access and reuse, bridge gaps, improve transparency and thus foster innovation and increase societal welfare. This is a time of great change. There is enormous growth among open knowledge projects and communities at all levels and in many countries. This gathering tide of open data and content is the creator and driver of massive technological change. How can we make this data available, how can we connect it together, how can we use it to collaborate and share our work? We thank all members of the program committee for providing their time and expertise for selecting the presentations and papers. All their help made this conference possible. We hope that you will enjoy the conference. Sebastian Hellmann Philipp Frischmuth Sören Auer Daniel Dietrich Rufus Pollock Programme Committee The programme committee for OKCon 2011 represent expertise from the wide range of academic research and practice OKCon topic areas will cover. It is of great importance that all Working Groups of the Open Knowledge Foundation are represented in the programme committee and at OKCon 2011 itself. The experts of the committee will be grouped around the topic areas of OKCon. Open Data Technology • Sören Auer, Universität Leipzig (Germany) • Sebastian Hellmann, Universität Leipzig (Germany), OKFN Working Group Coordinator for Open Data in Linguistics • Philipp Frischmuth, Universität Leipzig (Germany) • Michael Martin, Universität Leipzig (Germany) • Anja Jentzsch, Freie Universität Berlin (Germany) • Andrew Vande Moere, University of Sidney (Australia), and KULeuven (Belgium) • Rufus Pollock, University of Cambridge, member of OKFN Board of Directors (UK) Open Science and Open Data in Academic Research • Stefano Costa, Università di Siena, OKFN Working Group Coordinator for Open Data in Archaeology and Italy (Italy) • Claudia Müller-Birn, Freie Universität Berlin (Germany) • Tim Hubbard, Board of Management representative for Bioinformatics at Sanger Institute and Member of the OKFN Advisory Board (UK) • Puneet Kishor, The Carbon Model Team, University of Wisconsin- Madison and Science Fellow, Creative Commons (USA) • Adnan Hadzi, Goldsmiths, University of London (UK) • Peter Murray-Rust, Panton Principles, Open Bibliography, Open The- sis (Cambridge, UK) • Christian Chiarcos, Applied Computational Linguistics Lab, University of Potsdam (Germany) • Jim Pitman, Director Bibliographic Knowledge Network Project and Professor of Statistics and Mathematics University of California (USA) • Adrian Pohl, North Rhine-Westphalian Library Service Center (hbz), Coordinator of the OKFN Working Group on Open Bibliographic Data (Germany) Open Law, Society and Democracy • Tariq Khokhar, Open Data in Development Working Group. Analyst at aidinfo, trustee of Bond and working on the International Aid Trans- parency Initiative (IATI). • Chris Taggart, developer of OpenlyLocal OpenCharities and member of UK Govt Local Public Data Panel (UK) • Javier Ruiz, Open Rights Group (UK) • Christopher Corbin, independent researcher and advisor on the infor- mation society and the knowledge economy, OKFN Advisory Board (UK) • Ton Zijlstra, Community Steward at epsiplatform.eu, consultant on complex change processes and informal learning, FabLab Foundation BeNeLux (Netherlands) • David Bollier, author and activist on the commons, blogger at Bol- lier.org, Principal with Commons Strategy Group, Partner in Commons Law Project (USA) • Anne Fitzgerald, Queensland University of Technology (Australia) • Daniel Dietrich, Technical University Berlin, OKFN Working Group Coordinator for EU Open Data & Open Government Data (Germany) Open Culture, Education and Commons Research • Ignasi Labastida i Juan, Office for Knowledge Dissemination, Univer- sitat de Barcelona (Catalonia, Spain) • Ian Ibbotson, Director of Knowledge Integration (UK) • Andrea Goetzke, newthinking, all2gethernow (Germany) • Stefan Meretz, computer scientist, commons advocate, blogger at keim- form.de (Germany) • Wouter Tebbens, President Free Knowledge Institute ; Director Free Technology Academy (Netherlands/Spain) • Silke Helfrich, author and activist on the commons, blogger at www.commonsblog.de and www.gemeingueter.de, Principal with Commons Strategy Group (Germany)