• Bar-Ilan, J., Keenoy, K., Levene, M. & Yaari, E. (2007). User rankings of search engine results. Journal of the American Society for Information Science and Technology, 58(9), 12541266.
  • Black, T. R. (1994). Evaluating social science research: An introduction. London: SAGE Publications.
  • comScore (2009). comScore releases December 2008 U.S. search engine rankings. Retrieved January 26, 2009, from
  • Diaconis, P., & Graham, R. L. (1977). Spearman's footrule as a measure of disarray. Journal of the Royal Statistical Society, Series B (Methodological), 39, 262268.
  • Dou, Z., Song, R. & Wen, J. R. (2007). A large scale evaluation and analysis of personalized search strategies. In Proceedings of WWW2007, Banff, Canada, pp. 581590.
  • Dwork, C., Kumar, R., Naor, M. & Sivakumar, D. (2001). Rank aggregation methods for the Web. In Proceedings of the 10th World Wide Web Conference, May 2001, Hong-Kong, 613622.
  • Fagin, R., Kumar, R., Sivakumar, D. (2003). Comparing top k lists. SIAM Journal on Discrete Mathematics, 17(1), 134160.
  • Fallows, D. (2008). Almost half of all internet users now use search engines on a typical day. Pew Internet and American Life Project Memo. Retrieved January 26, 2009, from
  • Google (2009). Language tools. Retrieved January 26, 2009, from
  • Järvelin, K. & Kekäläinen, J. (2000). IR evaluation methods for retrieving highly relevant documents. In Proceedings of SIGIR-00, New York, pp. 4148.
  • Levene, M. (2006). An introduction to search engines and Web navigation. Harlow, England: Addison-Wesley.
  • Live Search (2009). Search worldwide. Retrieved January 26, 2009, from Nielsen Online(2009). News release. Retrieved January 26, 2009, from
  • Parag, N. (2009). Ynet narrows gap on Walla! Globes Online. Retrieved January 26, 2009, from
  • Pitkow, J., Schütze, H., Cass, T., Cooley, R., Turnball, D., Edmonds, A., Adar, E. & Breuel, T. (2002). Personalized search. Communications of the ACM, 45(9), 5055.
  • Shen, X., Tan, B. and Zhai, C. X. (2005). Implicit user modeling for personalized search. Proceedings of CIKM05, Bremen, Germany, pp. 824831.
  • Teevan, J, Dumais, S. T. & Horvitz, E. (2005). Personalizing search via automated analysis of interests and activities. Proceedings of SIGIR05, Salvador, Brazil, pp. 449456
  • Wiktionary (2008). Personalize. Retrieved January 26, 2009, from