A guy named ‘SidneyWinstonSmythe’ from London, UK decided to put Big Ben into GE. The model itself is very simple and not very realistic, but what is neat is that the clock actually works live in Google Earth! The second hand even moves. This is an application of the network link to dynamically update a drawing in GE based on time. Sid is using a PHP script to provide the dynamic data.
There are many more serious applications of the network link to provide dynamic data waiting to be found out. GE has only been out for a few months, and already we are seeing serious applications like what the City of Portland GIS group has been doing. In the coming months, and especially as Google Earth goes out of beta, we will see a flood of serious applications with powerful useful features reaching a global audience.
You can read the thread in the GE Forums where Sid posted this application. Although, he doesn’t explain very much about how he developed the application.