I finally posted the code from my book ASP.NET 3.5 Social Networking on CodePlex at http://community.codeplex.com/. Several people have asked for this so that we can make changes to the code and improve/expand the code base. I think I may also take the time to convert it from the MVP pattern to the latest ASP.NET MVC pattern/template as well as add test coverage the project. I also set up a forum for this at forum.socialnetworkingin.net and a separate blog at blog.socialnetworkinging.net.