nodejs is awesome. To get people started with nodejs, node-chat has been developed. Source code for node-chat app is here (Link is not available) .
When I looked at source code for the first time, it looked intimidating. In order to get started with nodejs, I have developed a small portion of the node-chat application in 13 incremental steps.
The first step is as simple as 15 lines of code .
If you want to follow along then go through README and you can get a feel of nodejs very quickly. How to checkout each step and other information is mentioned in README.
Enjoy nodejs.