There is a new HDR tutorial resource on the web that is a one stop shop of HDR resources. Many of the top HDRtists have contributed to Farbspiel Photography home of the HDR Cookbook. I look forward to contributing to the site often. I am sure you will find something here that suits your yearning for learning more about HDR Photography! It just took off this week so it is relatively new, make sure you stop by often to see how the site evolves!