Lucene搜索引擎入门比较好的书籍，非常适合想要了解搜索引擎如何工作的机理-Lucene search engine compare best entry books, very suitable for search engines want to know how to work the mechanism of

网络搜索引擎方面的源码，是个著名书籍上的例子，很有权威性-bot-pack

Nutch是一个由Java实现的，刚刚诞生开放源代码(open-source)的web搜索引擎。本书是nutch的入门书籍-Nutch is a Java implementation, just the birth of open source (open-source) of the web search engine. This book is the introductory books nutch