We've created a map using Google Earth to show where the projects for this years event are located. You can view the map using the version embeded in this page but you can also download the map to your computer or mobile device from http://lightnelson.org.nz/maps/LightNelson.kmz.
To open the file you will need to have Google Earth installed which can be downloaded from http://www.google.com/earth/index.html (for PC or Mac) or to install for mobile devices either visit the App store for your device or go to http://www.google.com/mobile/earth/. Google has tutorials on navigating with Google Earth both in the program itself and also on their website at http://www.google.com/earth/learn/beginner.html#tab=navigation.
The map is still under development but please feel free to send us your feedback.