May be I am bit late about these samples, but they are real killer .Net samples dev's cannot miss. These samples explain indetail about using ASP.NET Ajax Extensions, Linq, Windows Communication Foundation, Windows Workflow Foundation, Windows Presentation Foundation, .NET Enterprise Application Server Technologies in your applications. Go get them from the following links
.NET StockTrader Sample Application
Friday, September 21, 2007
Wednesday, September 19, 2007
Yesterday I passed my Exam 70-536 TS: Microsoft .NET Framework 2.0—Application Development Foundation, Finally now I am a Microsoft Certified Technology Specialist (MCTS), .NET Framework 2.0 Web Applications.