I have been messing with Google modules recently. The first module I wrote, Flickr Search, was an external content module using AJAX and PHP to do Flickr searches based on username or tags. That module is getting a complete overhaul. The new one will be inlined and use the built in Google functions to retrieve Flickr data. I will be posting a small tutorial on how to use the Google Homepage API as their examples are slim and I want to save people some of the frustrations I had. Stay tuned.