L. A. Schmidt, Crowdsourcing for Human Subjects Research, Proceedings of CrowdConf 2010, 2010.

M. Krause, J. Smeddinck, A. Takhtamysheva, V. Markov, and N. Runge, Playful Surveys: Easing Challenges of Human Subject Research with Online Crowds Challenges of Human Subject Research, HComp'12 Proceedings of the AAAI Workshop on Human Computation, 2012.

A. Weichselbraun, S. Gindl, and A. Scharl, Using games with a purpose and bootstrapping to create domain-specific sentiment lexicons, Proceedings of the 20th ACM international conference on Information and knowledge management, CIKM '11, pp.1053-1060, 2011.
DOI : 10.1145/2063576.2063729

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

C. L. Hsu and . H. Lu, Why do people play on-line games? An extended TAM with social influences and flow experience, Information and Management, pp.853-868, 2004.
DOI : 10.1016/j.im.2003.08.014

URL : http://citeseerx.ist.psu.edu/viewdoc/summary?doi=

V. L. Ahn, Human computation, Proceedings of the 46th Annual Design Automation Conference (DAC '09, pp.418-419, 2009.

S. Cooper, F. Khatib, A. Treuille, J. Barbero, J. Lee et al., Predicting protein structures with a multiplayer online game, Nature, vol.6, issue.7307, pp.756-760, 2010.
DOI : 10.1038/nature09304

URL : http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2956414

A. Kawrykow, G. Roumanis, A. Kam, D. Kwak, and C. Leung, Phylo: A Citizen Science Approach for Improving Multiple Sequence Alignment, PLoS ONE, vol.27, issue.3, 2011.
DOI : 10.1371/journal.pone.0031362.g003

URL : http://doi.org/10.1371/journal.pone.0031362

O. Chrons and S. Sundell, Digitalkoot: Making Old Archives Accessible Using Crowdsourcing, HCOMP '11 Proceedings of the ACM SIGKDD Workshop on Human Computation, 2011.