Chatsockets is a project mainly written in C++ and C, it's free.
Use socket.io to do a simple chat room
Start the Node server with NODE_PATH=. node chat.js.
The NODE_PATH=. shenanigans are so node looks in the current
directory for the socket.io module.
The default is for the server to start at 'localhost:8030'.
Then open the chat.html in a webbrowser; the Javascript on
chat.html attempts to open connections to the chat.js
server at 'localhost:8030'.