InhaltsangabeFrom the editors.-ECSCW'05 Conference Committee.-ECSCW'05 Program Committee.-Ways of the hand, David Kirk, Tom Rodden, and Andy Crabtree (University of Nottingham, UK).-A design theme for tangible interaction: Embodied facilitation,Eva Hornecker (Interact Lab, University of Sussex, Falmer, UK).-Supporting high coupling and user-interface flexibility, Vassil Roussev (University of New Orleans, USA) and Prasun Dewan (University of North Carolina, Chapel Hill, USA).-A groupware design framework for loosely coupled workgroups,David Pinelle and Carl Gutwin (University of Saskatchewan, Canada).-Formally analyzing two-user centralized and replicated architectures,Sasa Junuzovic (University of North Carolina, Chapel Hill, USA), Goopeel Chung (Westfield State College, USA), and Prasun Dewan (University of North Carolina, Chapel Hill, USA).-Working together inside an emailbox, Michael J. Muller and Daniel M. Gruen (IBM Research, USA).-Emergent temporal behaviour and collaborative work, Lesley Seebeck and Richard Kim (University of Queensland, Australia), Simon Kaplan (Queensland University of Technology, Australia).-Managing currents of work: Multi-tasking among multiple collaborations,Victor M. González and Gloria Mark (University of California, Irvine, USA).-The duality of articulation work in large heterogenous settings - a study in health care, Louise Færgemann, Teresa Schilder-Knudsen, and Peter Carstensen (IT University of Copenhagen, Denmark).-Maintaining constraints in collaborative graphic systems: the CoGSE approach, Kai Lin, David Chen, Chengzheng Sun, and Geoff Dromey (Griffith University, Australia).-Empirical investigation into the effect of orientation on text readability in tabletop displays, Daniel Wigdor and Ravin Balakrishnan (DGP Lab, University of Toronto, Canada).-An evaluation of techniques for reducing spatial interference in single display groupware, Theophanis Tsandilas and Ravin Balakrishnan (University of Toronto, Canada).-Cellular phone as a collaboration tool that empowers and changes the way of mobile work: focus on three fields of work, Eriko Tamaru, Kimitake Hasuike, and Mikio Tozaki (Fuji Xerox Co., Ltd., Japan).-Representations can be good enough, Jacki O'Neill, Stefania Castellani, Antonietta Grasso, Frederic Roulland, and Peter Tolmie (Xerox Research Centre Europe, France).-Using empirical data to reason about Internet research ethics, James M. Hudson and Amy Bruckman (Georgia Institute of Technology, USA).-Community-based learning: Design patterns and frameworks, John M. Carroll and Umer Farooq (The Pennsylvania State University, USA.-Expertise sharing in a heterogeneous organizational environment, Tim Reichling and Michael Veith (University of Siegen, Germany).-Local expertise at an emergency call centre,Maria Normark (Royal Institute of Technology, Sweden) and Dave Randall (Manchester Metropolitan University, UK).-Context grabbing: Assigning metadata in large document collections, Joachim Hinrichs (Institute for Information Management, Bremen, Germany), Volkmar Pipek (International Institute for Socio-Informatics, Germany, and University of Oulu, Finland), Volker Wulf (University of Siegen and Fraunhofer FIT, Germany).-Between chaos and routine: Boundary negotiating artifacts in collaboration, Charlotte Lee (University of California Irvine, USA).-Coordination and collaboration environments for production lines: a user acceptance issue, François Laborie (EADS Corporate Research Center, France), Stéphane Chatty (Intuilab, France), Claude Reyterou (EADS Corporate Research Center, France).-Sharing the square: collaborative leisure in the city streets, Barry Brown, Matthew Chalmers, and Marek Bell (University of Glasgow, UK); Ian MacColl (University of Queensland, Australia); Malcolm Hall and Paul Rudman (University of Glasgow, UK).-Informing public deliberation: Value sensitive design of indicators for a large-scale urban simulation, Alan Borning, Batya Friedman, Janet Davis, and Peyina Lin (Unive