HTML5 push http://blog.csdn.net/yo548720570/article/details/8599947 http://www.oschina.net/question/82993_63312 http://bbs.lampbrother.net/read-htm-tid-149631.html http://drublic.de/blog/the-difference-between-push-and-pull/ http://dsheiko.com/weblog/html5-and-server-sent-events/ http://dsheiko.com/weblog/websockets-vs-sse-vs-long-polling