Microsoft Office Interactive Developer Map The Microsoft Office Interactive Developer Map is a Windows Presentation Foundation (WPF) application that helps developers visualize the different programs, servers, services, and tools that will help them build solutions. It allows them to drill down to each product and technology and learn about new features, objects, Web services, namespaces, and schemas required to extend Microsoft Office and build custom Office Business Applications (OBAs) . Source: Interactive Developer Map I have a look at this and was quite impressed with the list of resources available to you. For example - look at the link below - it is the Office Live drill down - look at all the places to get information - I checked - the sites are good! ttfn David