J. Grace, D. Zhao, and danah boyd. CHI EA '10: Proceedings of the 28th of the international conference extended abstracts on Human factors in computing systems, page 4517--4520. New York, NY, USA, ACM, (2010)
B. Krishnamurthy, P. Gill, and M. Arlitt. WOSP '08: Proceedings of the first workshop on Online social networks, page 19--24. New York, NY, USA, ACM, (2008)
M. Nentwich. ita-Manuskript, ita-09-02. Institut für Technikfolgen-Abschätzung an der Österreichischen Akademie der Wissenschaften, Wien, (November 2009)
C. Costa, G. Beham, W. Reinhardt, and M. Sillaots. Proceedings of the 2nd SIRTEL'08 Workshop on Social Information Retrieval for Technology Enhanced Learning, 382, Maastricht, The Netherlands, (September 2008)
A. Java, X. Song, T. Finin, and B. Tseng. WebKDD/SNA-KDD '07: Proceedings of the 9th WebKDD and 1st SNA-KDD 2007 workshop on Web mining and social network analysis, page 56--65. New York, NY, USA, ACM, (2007)
L. Gerlach, S. Hauptman, and M. Böhringer. Tagungsband der Multikonferenz Wirtschaftsinformatik (MKWI), page 1485--1494. Göttingen, Universitätsverlag Göttingen, (February 2010)
K. Borau, C. Ullrich, J. Feng, and R. Shen. Advances in Web Based Learning - ICWL 2009, 8th International Conference, Aachen, Germany, August 19-21, 2009. Proceedings, volume 5686 of Lecture Notes in Computer Science, page 78-87. Springer, (2009)
A. Burns, and B. Eltham. Proceedings of Communications Policy & Research Forum, page 298-310. Network Insight Institute, University of Technology, Sydney, (2009)