博主哥哥收集的。。
http://github.com/justjavac/free-programming-books-zh_CN
http://siberiawolf.com/free_programming/index.html
http://github.com/it-ebooks/blog
http://www.kancloud.cn/explore
http://it.ctfile.com/user/8932385/folder/0
http://www.2cto.com/ebook/pro/
http://www.jb51.net/do/book_class.html
http://www.hzbook.com/Feature/ResourceList.aspx