Build Real-time Apps with Backbone.js, Node.js, Socket.io

&YET has written a detailed article on Re-using Backbone.js Models on the server with Node.js and Socket.io to build real-time apps.
Using this approach we send very small changes over an already established connection, we can very quickly synchronize state from one client to the other or the server can get updates from an external data source, modify the model on the server and those changes would immediately be sent to the connected clients. Best of all – it’s fast. Now, you can just write your views like you normally would in a Backbone.js app.

Source: http://andyet.net/blog/2011/feb/15/re-using-backbonejs-models…