websocket

http://blog.bingo929.com/html5-websockets.html

http://dev.w3.org/html5/eventsource/

http://www.w3.org/TR/2012/CR-eventsource-20121211/

http://www.cnblogs.com/chenruizhe/archive/2011/12/28/2304330.html

http://www.cnblogs.com/qiongmiaoer/

http://www.jzxue.com/wangzhankaifa/php/200912/08-3236_3.html

http://software.intel.com/zh-cn/blogs/2012/03/05/web-html5-web-sockets-api