As you know Google.com is the most popular search engine in the world. Here are some tips to helps you find eBooks with Google: Find Apache's (default) Index page Try this query: +("index of") +("/ebooks"|"/book") +(chm|pdf|zip|rar) +apache Find a particular eBook file Try this query: allinurl: +(rar|chm|zip|pdf|tgz) TheTitle