Yesterday I mentioned that I revisited an old Google Adwords demo that I worked on a while back.
Here's the tutorial explaining that demo.
I've updated the demo, which previously was a VB6 app that was basically just a list of functions, to a more functional app. If you're interested, you can download the demo app here (source and compiled executable).
This could be easily translated into .Net, ASP, Delphi, BCB, C++, Java, PHP, etc. Just let me know if you're interested.