Here's a quick guide to deploying a Node app to Heroku. It's a good place to start and allows you to separate issues you might have with an app you're working on from issues related to deployment.
It's accompanied by a script that's available on github: https://github.com/justy/node-express-heroku
If you've ever wanted to pull apart your Ninja Block to get at the goodies inside, we've made a short video showing you how to do exactly that.
Why might you like to do that?
Have a look at the video and let us know in the forums what you'd like to see in future blog posts and videos!
This mod has been out there on the Interwebs for some time now but I have never tried it myself and decided to give it a go. I'm glad I did- a motor that's controllable in this fashion is incredibly useful.