http://www.infoq.com/cn/news/2012/11/netease-nodejs-framework
http://www.jlmonteagudo.com/2013/06/javascript-stack/
http://www.gianlucaguarini.com/blog/push-notification-server-streaming-on-a-mysql-database/
http://www.gianlucaguarini.com/blog/nodejs-and-a-simple-push-notification-server/
http://www.websocket.org/quantum.html
http://www.indicthreads.com/1525/building-real-time-web-applications-using-html-5-web-sockets/