Bing Liu, Web Data Mining: Exploring Hyperlinks, Contents, and Usage Data, Springer, 2011, ISBN: 3540378812

Christopher D. Manning, Prabhakar Raghavan and Hinrich Schütze, Introduction to Information Retrieval, Cambridge University Press. 2008. 

R. Baeza-Yates, B. Ribeiro-Neto. Modern Information Retrieval.  Addison-Wesley, 2011.

Soumen Chakrabarti, Mining the Web: Discovering Knowledge from Hypertext Data, Morgan-Kaufmann Publishers, 2003, ISBN 1-55860-754-4

Pierre Baldi, Paolo Frasconi, Padhraic Smyth, Modeling the Internet and the Web, John Wiley and Sons Ltd, 2003, ISBN 0470849061

Mark Levene, An Introduction to Search Engines and Web Navigation, Pearson Education, 2010, ISBN 0321306775