General Co-Chairs

Karl Aberer
School for Computer and Communication Science, EPFL, Switzerland
Andreas Flache
Department of Sociology, University of Groningen, The Netherlands

Program Co-Chairs

Wander Jager
Department of Sociology, University of Groningen, The Netherlands
Ling Liu
Georgia Institute of Technology, USA
Jie Tang
Tsinghua Univ. P.R. China

Workshop Co-Chairs

Michael Maes
Department of Humanities, Social and Political Sciences, ETH Zürich, Switzerland
Cecilia Mascolo
Computer Laboratory, Cambridge University, UK

Tutorial Co-Chairs

Steve Marsh
Communications Research Centre, Ottawa, Canada
Camille Roth
Centre d'analyse et de mathématique sociales, CNRS, France

Poster/Demo Co-Chairs

Jan Blom
Nokia Research Center, Lausanne, Switzerland
James Caverlee
Department of Computer Science and Engineering, Texas A&M University, USA

Sponsorship/Exhibition Co-Chairs

Sabine Susstrunk
School for Computer and Communication Science, EPFL, Switzerland
Dominique Vinck
Institut des sciences sociales, University Lausanne, Switzerland

Publicity Chairs

Sonja Buchegger
School of Computer Science and Communication, KTH, Sweden
Cristian Danescu
Department of Computer Science, Cornell University, USA
Claire Clivaz
Institut romand des sciences bibliques, University Lausanne, Switzerland
Anwitaman Datta
School of Computer Engineering, NTU Singapore

Publications Chairs

Christophe Gueret
Department of Artificial Intelligence, Vrije Universiteit Amsterdam, The Netherlands
Leonard Bolc
Polish-Japanese Institute of Information Technology, Poland

Web Co-Chairs

Michele Catasta
School for Computer and Communication Science, EPFL, Switzerland
Surender Reddy Yerva
School for Computer and Communication Science, EPFL, Switzerland

Local Organization

Chantal Francois
School for Computer and Communication Science, EPFL, Switzerland

Adam Wierzbicki, Chair
Polish-Japanese Institute of Information Technology, Poland
Karl Aberer
School for Computer and Communication Science, EPFL, Switzerland
Katsumi Tanaka
Kyoto University, Japan
Anwitaman Datta
Nanyang Technological University, Singapore
Ee-Peng Lim
Singapore Management University, Singapore
Noshir Contractor
Northwestern University, USA
Michael Macy
Cornell University
Hsinchun Chen
University of Arizona
Sue B. Moon
Korea Advanced Institute of Science and Technology

Fred Amblard
CNRS IRIT - Universit des Sciences Sociales Toulouse 1
Stuart Anderson
University of Edinburgh
Emma Angus
University of Wolverhampton
Sitaram Asur
HP Labs
George Barnett
University of California
Michael Baron
Baron Consulting
Nadia Bennani
Lab. LIRIS INSA de Lyon
Abraham Bernstein
University of Zurich
Klemens Böhm
Universität Karlsruhe (TH)
Francesco Bolici
Cassino University
Svetlin Bostandjiev
University of California Santa Barbara
Ulrik Brandes
University of Konstanz
Amit Chopra
University of Trento
Chris Cornelis
University of Granada
Martine De Cock
Ghent University, Dept. of Applied Mathematics and Computer Science
Yves-Alexandre de Montjoye
Massachusetts Institute of Technology
Guillaume Deffuant
Cemagref
Chris Dellarocas
Boston University
Jana Diesner
University of Illinois at Urbana-Champaign
Marios Dikaiakos
University of Cyprus
Ying Ding
Indiana University
Xiaoyong Du
Renmin University of China
Bruce Edmonds
Manchester Metropolitan University Business School
Andreas Ernst
University of Kassel, Kassel, Germany
Alois Ferscha
University of Linz
Richard Forno
UMBC
Heljä Franssila
University of Tampere
Timothy French
Bedfordshire University
Wai-Tat Fu
University of Illinois
Gerhard Fuchs
university of stuttgart
Armando Geller
Scensei
Peter Groenewegen
VU University
Ido Guy
IBM Research
Chris Hinnant
Florida State University
Wenlian Hsu
Academia Sinica
Yuh-Jong Hu
National Chengchi University
Baden Hughes
The University of Melbourne
Stephan Humer
Berlin University of the Arts
Marco Janssen
Arizona State University
Mark Jelasity
University of Szeged
James Joshi
University of Pittsburgh
Radu Jurca
Google Inc. Switzerland
Jean-Daniel Kant
Pierre and Marie Curie - Paris VI
Przemysław Kazienko
Wroclaw University of Technology
Andreas Koch
University of Salzburg
Walter Lamendola
University of Denver
Georgios Lappas
Technological Educational Institute (T.E.I.) of Western Macedonia, Kastoria Campus, Greece
Yefeng Liu
Department of Computer Science, Waseda Univerisity
Paul Lukowicz
University of Passau
Christopher Mascaro
Drexel University
Winter Mason
Stevens Institute of Technology
Paolo Massa
Bruno Kessler Foundation
David Millard
University of Southampton
Bamshad Mobasher
DePaul University
Tony Moore
Deloitte Analytics
Mikołaj Morzy
Poznan University of Technology
Tsuyoshi Murata
Tokyo Institute of Technology
Keiichi Nakata
University of Reading
Taewoo Nam
Center for Technology in Government, University at Albany, State University of New York
Wolfgang Nejdl
L3S and University of Hannover
Bruce Neubauer
Albany State University
See-Kiong Ng
Institute for Infocomm Research
Carlos Nunes Silva
University of Lisbon
Huseyin Oktay
University of Massachusetts, Amherst
Anne-Marie Oostveen
Oxford Internet Institute
Mario Paolucci
Institute of Cognitive Sciences and Technologies
Elin Rønby Pedersen
Google
Gregor Petrič
Faculty of Social Sciences, Uni of Ljubljana, Slovenia
Daniele Quercia
Universtiy College London
Alice Robbin
Indiana University
Sini Ruohomaa
University of Helsinki, Finland
Geoffery Seaver
National Defense University
Kalpana Shankar
Indiana University-Bloomington
Xiaolin Shi
Microsoft Corporation
Vaclav Snasel
VSB-Technical University of Ostrava
Thanakorn Sornkaew
Ramkhamheang University
Flaminio Squazzoni
Dipartimento di Studi Sociali, Università di Brescia
Thorsten Strufe
TU Darmstadt
Neel Sundaresan
eBay Research Labs
Maurizio Teli
Fondazione Ahref
Klaus G Troitzsch
University of Koblenz-Landau
Julita Vassileva
University of Saskatchewan
Miguel Vicente
Universidad de Valladolid
Mark Weal
University of Southampton
Roger Whitaker
Cardiff University
Nanda Wijermans
University of Utrecht
Weining Zhang
University of Texas at San Antonio, USA