Hey! I found a tutorial [here] (http://code.tutsplus.com/tutorials/using-nodejs-and-websockets-to-build-a-chat-service--net-34482)
And hacked a little bit more (also to make it work after breaking changes) and this is the result - a chat to share links to images.
What to do:
npm install
node server.js
head to localhost:8888
Enjoy!