Made for Media Center is a new site that aims to provide all the add-ins to Windows Media Center. It’s in the early stages but already offers a great resources to different add-ins you can install. They are also working on a add-in that will allow you to browse through the collection from the Windows Media Center interface. It’s currently in beta but I’m sure they will have it wrapped up and available soon. It’s a cool project that will simplify getting more use out of Windows Media Center.