清华的搜索课程 http://www.thuir.org/course/index.htmlcourseware downloadLecture.1 Basic Concepts and Search Engine HistoriesLecture.2 Introduction to Search Engine ArchitectureLecture.3 Search Engine Performance EvaluationLecture.4 Web Data and Hyperlink Analysis AlgorithmsLecture.5 Google Search Engine InfrastructureLecture.6 Case Study: Google Shopping Search