Node.js + WebSocekt + Socekt.io + Express + Jade

http://net.tutsplus.com/tutorials/javascript-ajax/using-node-js-and-websockets-to-build-a-chat-service/

WebSocket Protocol reference

Best explanation about TCP/IP : http://www.redbooks.ibm.com/redbooks/pdfs/gg243376.pdf

WebSocket protocol : http://tools.ietf.org/html/rfc6455

WebSocket API : http://www.w3.org/TR/websockets/

WebSockt with JAVA : http://www.oracle.com/technetwork/articles/java/jsr356-1937161.html