Bahmani, Bahman, Kumar, Ravi, Mahdian, Mohammad and Upfal, Eli. "PageRank on an evolving graph." Paper presented at the meeting of the Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining, New York, NY, USA, 2012.

Liu, Minghai, Cai, Rui, Zhang, Ming and Zhang, Lei. "User browsing behavior-driven web crawling." Paper presented at the meeting of the Proceedings of the 20th ACM international conference on Information and knowledge management, New York, NY, USA, 2011.

Croft, W. Bruce, Metzler, Donald and Strohman, Trevor. Search engines: information retrieval in practice. 1st Boston: Addison-Wesley, 2010.

Horowitz, Damon and Kamvar, Sepandar D.. "The anatomy of a large-scale social search engine." Paper presented at the meeting of the Proceedings of the 19th international conference on World wide web, New York, NY, USA, 2010.

Antonellis, Ioannis, Garcia-Molina, Hector and Karim, Jawed. "Tagging with Queries: How and Why?." Paper presented at the meeting of the WSDM (Late Breaking-Results), New York, NY, USA, 2009.

Pieper, Dirk and Wolf, Sebastian. "Wissenschaftliche Dokumente in Suchmaschinen." In Handbuch Internet-Suchmaschinen: Nutzerorientierung in Wissenschaft und Praxis , edited by Lewandowski Dirk , 356--374. : Akademische Verlagsgesellschaft AKA, 2009.

Jäschke, Robert, Krause, Beate, Hotho, Andreas and Stumme, Gerd. "Logsonomy -- A Search Engine Folksonomy." Paper presented at the meeting of the Proceedings of the Second International Conference on Weblogs and Social Media (ICWSM 2008), Menlo Park, CA, USA, 2008.

Krause, Beate, Jäschke, Robert, Hotho, Andreas and Stumme, Gerd. "Logsonomy - Social Information Retrieval with Logdata." Paper presented at the meeting of the HT '08: Proceedings of the Nineteenth ACM Conference on Hypertext and Hypermedia, New York, NY, USA, 2008.

Olston, Christopher and Pandey, Sandeep. "Recrawl scheduling based on information longevity." Paper presented at the meeting of the Proceedings of the 17th international conference on World Wide Web, New York, NY, USA, 2008.

Cho, Junghoo and Schonfeld, Uri. "RankMass crawler: a crawler with high personalized pagerank coverage guarantee." Paper presented at the meeting of the Proceedings of the 33rd international conference on Very large data bases, 2007.

Pandey, Sandeep and Olston, Christopher. "User-centric Web crawling." Paper presented at the meeting of the Proceedings of the 14th international conference on World Wide Web, New York, NY, USA, 2005.

Almeida, Rodrigo B. and Almeida, Virgilio A. F.. "A community-aware search engine." Paper presented at the meeting of the Proceedings of the 13th international conference on World Wide Web, New York, NY, USA, 2004.

Castillo, Carlos. "Effective Web Crawling." PhD diss., School of Engineering, 2004.

Ding, Li, Finin, Timothy W., Joshi, Anupam, Pan, Rong, Cost, R. Scott, Peng, Yun, Reddivari, Pavan, Doshi, Vishal and Sachs, Joel. "Swoogle: a search and metadata engine for the semantic web.." Paper presented at the meeting of the CIKM, 2004.

Zhang, Dell and Dong, Yisheng. "A novel Web usage mining approach for search engines." Computer Networks 39 , no. 3 (2002): 303--310.