Ioannis Anagnostopoulos, University of the Aegean, Information & Communication Systems Engineering Department, Greece. Vassilis Athitsos, University of Texas at Arlington, Computer Science and Engineering Department, USA. Shiri Azenkot, University of Washington, Dept of Computer Science & Engineering, USA. Panagiotis Bamidis, Aristotle University of Thessaloniki, Medical School, Greece. Eric Becker, University of Texas at Arlington, Computer Science and Engineering Department, USA. Petros Belsis, Technological Educational Institute of Athens, Department of Marketing, Greece. Jeffrey Bigham, University of Rochester, Computer Science Department, USA. Stephen Boyd-Davis, Middlesex University, Art and Design Research Institute, and Lansdown Centre for Electronic Arts, United Kingdom. Jeremy Brudvik, Georgia Tech, Ubiquitous Computing Group, USA. Anna Cavender, University of Washington, Computer Science & Engineering, USA. Guanling Chen, University of Massachussetts at Lowell, Center for Network and Information Security, USA. Wendy Chisholm, University of Washington, Computer Science and Engineering, USA. Konstantinos Chorianopoulos, Ionian University, Department of Informatics, Greece. John Clarkson, Cambridge University, Engineering Department, United Kingdom. Anna Dickinson, University of Dundee, School of Computing, United Kingdom. Charalampos Doukas, University of the Aegean, Information & Communication Systems Engineering Department, Greece. Penny Duquenoy, Middlesex University, School of Engineering & Information Sciences, United Kingdom. David England, Liverpool John Moores University, School of Computing and Mathematical Sciences, United Kingdom. Grigori Evreinov, University of Tampere, Department of Computer Sciences, Finland. Lucia Ferlino, CNR-ITD, Italy. Bob Fields, Middlesex University, School of Engineering & Information Sciences, United Kingdom. Peter Forbrig, University of Rostock, Institute of Computer Science, Germany. Evita Fotinea, Institute for Language and Speech Processing/R.C. ‘‘Athena’’, Greece. Damianos Gavalas, University of the Aegean, Department of Cultural Technology and Communication, Greece. Sylvie Gibet, Université de Bretagne-Sud, Laboratoire VALORIA, France. Nicholas Giudice, University of Maine, Department of Spatial Information Science and Engineering, USA. John Glauert, University of East Anglia, School of Computing Sciences, United Kingdom. Andrina Granic, University of Split, Department of Computer Science, Croatia.