F. Abel, Q. Gao, G. Houben, and K. Tao, Analyzing temporal dynamics in Twitter profiles for personalized recommendations in the social web, Proceedings of the 3rd International Web Science Conference on, WebSci '11, 2011.
DOI : 10.1145/2527031.2527040

F. Abel, N. Henze, E. Herder, and D. Krause, Linkage, aggregation, alignment and enrichment of public user profiles with Mypes, Proceedings of the 6th International Conference on Semantic Systems, I-SEMANTICS '10, pp.1-11, 2010.
DOI : 10.1145/1839707.1839721

D. M. Boyd and N. B. Ellison, Social Network Sites: Definition, History, and Scholarship, Journal of Computer-Mediated Communication, vol.3, issue.1, pp.210-230, 2007.
DOI : 10.1111/j.1083-6101.2007.00393.x

D. Brickley and L. Mille, Foaf vocabulary specification, 2005.

W. Kim, O. Jeong, L. , and S. , On social Web sites, Spec Section: Context-Oriented Information Integration, pp.215-236, 2010.
DOI : 10.1016/j.is.2009.08.003

S. Noor and K. Martinez, Using social data as context for making recommendations, Proceedings of the 1st Workshop on Context, Information and Ontologies, CIAO '09, pp.1-7, 2009.
DOI : 10.1145/1552262.1552269

F. Orlandi, J. Breslin, and A. Passant, Aggregated, interoperable and multi-domain user profiles for the social web, Proceedings of the 8th International Conference on Semantic Systems, I-SEMANTICS '12, p.41, 2012.
DOI : 10.1145/2362499.2362506

T. Plumbaum, S. Wu, E. De-luca, A. , and S. , User modeling for the social semantic web, Proceedings of the 2nd Workshop on Semantic Personalized Information Management: Retrieval and Recommendation, 2011.

B. Shapira, L. Rokach, and S. Freilikhman, Facebook single and cross domain data for recommendation systems, User Modeling and User-Adapted Interaction, vol.4, issue.14, 2012.
DOI : 10.1007/s11257-012-9128-x

T. Vu and A. Baid, Ask, don't search: A social help engine for online social network mobile users, 2012 35th IEEE Sarnoff Symposium, pp.1-5, 2012.
DOI : 10.1109/SARNOF.2012.6222758

M. Zhou, W. Zhang, . Smith, E. Varga, M. Farias et al., Finding someone in my social directory whom i do not fully remember or barely know, Proceedings of the 2012 ACM international conference on Intelligent User Interfaces, IUI '12, pp.203-206, 2012.
DOI : 10.1145/2166966.2167001