S. No\textbackslashël, and R. Beale. Proceedings of the 22nd British CHI Group Annual Conference on HCI 2008: People and Computers XXII: Culture, Creativity, Interaction-Volume 2, page 71–74. (2008)
S. Oldenburg, M. Garbe, and C. Cap. SSM '08: Proceeding of the 2008 ACM workshop on Search in social media, page 11--18. New York, NY, USA, ACM, (2008)