Nodejs: where session stores? what is connect-mongo?

Server receives message, broadcasts it and forgets about it. Who sais anything about storing? Server can be just a proxy.

1) If you don't want to use a database for your chat, you should store the messages into a simple hash. But keep in mind, if you restart your node application, they will be lost.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.