http://blog.csdn.net/cutesource/article/category/631854
http://wslfh2005.iteye.com/
http://www.cnblogs.com/phinecos/archive/2008/11/27/1342655.html
http://my.oschina.net/ielts0909/blog/90355/
http://blog.csdn.net/lingyb011/article/category/741004