My designer students are enthusiastic on using web socket for their interactive base project. However, they do not have the basic networking lesson, hence cant tell the different between UDP and TCP. Most of the tool they picked re TCP base. However, UDP is a better protocol to use, especially when you wanto do realtime action game in multilayer mode that required very low latency. Here is a very detail article on the differences between TCP and UDP. http://blog.artillery.com/2012/06/websocket-performance.html