edgejs
http://krasimirtsonev.com/blog/article/Real-time-chat-with-NodeJS-Socketio-and-ExpressJS
https://github.com/LearnBoost/socket.io/wiki
http://blog.sina.com.cn/s/blog_49cc837a0101a2q3.html
http://my.oschina.net/u/253527/blog/113233
http://tjanczuk.github.io/edge/#/9
http://www.cnblogs.com/whitewolf/archive/2013/03/31/2991200.html
http://www.cnblogs.com/skyoo/archive/2012/04/01/2427879.html
出处:http://cnblogs.com/daishuguang