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- WWW '07: Proceedings of the 16th international conference on World Wide Web, page 211--220. New York, NY, USA, ACM, (2007)
- SSM '08: Proceeding of the 2008 ACM Workshop on Search in Social Media, page 11--18. New York, NY, USA, ACM, (October 2008)
- In Proceedings of the ECAI 2008 Mining Social Data Workshop 2008, page 26-30. (2008)
- Proceedings of the 22nd British CHI Group Annual Conference on HCI 2008: People and Computers XXII: Culture, Creativity, Interaction, 2, page 71-74. (2008)
- CSCW '08: Proceedings of the ACM 2008 conference on Computer supported cooperative work, page 239--248. New York, NY, USA, ACM, (2008)
- ASIS&T 2008 Annual Meeting AM08 2008 (October 2008)
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- (August 2009)working draft .
- CHI '07: Proceedings of the SIGCHI conference on Human factors in computing systems, page 971--980. New York, NY, USA, ACM, (2007)
- HYPERTEXT '06: Proceedings of the seventeenth conference on Hypertext and hypermedia, page 31--40. New York, NY, USA, ACM, (2006)
- Journal of Information Science 32(2):198--208 (August 2005)
- Int'l AAAI Conference on Weblogs and Social Media ICWSM, San Jose, CA, USA, (May 2009)
- SIGIR '09: Proceedings of the 32nd international ACM SIGIR conference on Research and development in information retrieval, page 123--130. New York, NY, USA, ACM, (2009)
- WWW '09: Proceedings of the 18th international conference on World wide web, page 641--650. New York, NY, USA, ACM, (2009)
- WWW '07: Proceedings of the 16th international conference on World Wide Web, page 501--510. New York, NY, USA, ACM, (2007)
- GROUP '07: Proceedings of the 2007 international ACM conference on Conference on supporting group work, page 351--360. New York, NY, USA, ACM, (2007)


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