I will show you how I built a start page similar to Google IG in 7 nights using ASP.Net Ajax, .NET 3.0, Linq, DLinq and XLinq. I have logged my day to day development experience in this article and documented all the technical challenges, interesting discoveries and important design & architectural decisions. You will find the implementation quite close to actual Google IG. It has drag & drop enabled widgets, complete personalization of the pages, multi page feature and so on. It's not just a prototype or a sample project. It's a real living and breathing open source start page running at http://www.dropthings.com/ which you can use everyday. You are welcome to participate in the development and make widgets for the project.