F. Benevenuto, T. Rodrigues, M. Cha, and V. Almeida. Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference, page 49--62. New York, NY, USA, ACM, (2009)
H. Kwak, C. Lee, H. Park, and S. Moon. WWW '10: Proceedings of the 19th international conference on World wide web, page 591--600. New York, NY, USA, ACM, (2010)
S. Ferebee, and J. Davis. Persuasive '09: Proceedings of the 4th International Conference on Persuasive Technology, page 1--8. New York, NY, USA, ACM, (2009)
C. Sas, A. Dix, J. Hart, and R. Su. CHI '09: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems, page 4345--4350. New York, NY, USA, ACM, (2009)
L. Barkhuus, and J. Tashiro. CHI '10: Proceedings of the 28th international conference on Human factors in computing systems, page 133--142. New York, NY, USA, ACM, (2010)
A. Nazir, S. Raza, and C. Chuah. IMC '08: Proceedings of the 8th ACM SIGCOMM conference on Internet measurement, page 43--56. New York, NY, USA, ACM, (2008)
H. Jiang, and J. Carroll. C&\#38;T '09: Proceedings of the fourth international conference on Communities and technologies, page 51--60. New York, NY, USA, ACM, (2009)
F. Benevenuto, T. Rodrigues, M. Cha, and V. Almeida. IMC '09: Proceedings of the 9th ACM SIGCOMM conference on Internet measurement conference, page 49-62. New York, NY, USA, ACM, (2009)