David Hayden shows how the support for System.ComponentModel.DataAnnotations in DefaultModelBinder works in ASP.NET MVC 2.0 Preview 1.
Julie Lerman talks about code only support and query improvements in EF 4.0.
Alex James talks about structural annotations.
Bart DeSmet has an excellent introductory post about MEF.
In the latest MSDN Magazine, David Simmons talks about N-Tier Application Patterns and Tim Mallalieu talks about Data Access Architecture Best Practices.
Simon Seagal has an interesting post about fetching strategies in EF 4.0. Also Alex James has a nice post about implementing fetching strategies.
Mattieu Mezil show how to use TypeDescriptors to make FK work in EF 1.0.
In his 30th tip, Alex James shows how to use database functions in EF 1.0 and EF 4.0.
The ADO.NET team presents the improvements to the generated SQL for Entity Framework.
Phil Haacked shows how to focus in View pages on presentation concerns by moving Page declaration to web.config. He also shows a prototype of default templated views that we might have in the future bits of MVC.
Kirill Osenkov points out the C# compiler team blogs.
Chris Burrows has a nice post about dynamic base classes.
Eric Lippert has another bunch of excellent articles:
Thomas Marquardt has an excellent post about the correct use of System.Web.HttpResponse.Redirect.
Scott Hanselman has a great post about migrating an ASP.NET MVC 1.0 running on .NET 3.5 to Visual Studio 2010 Beta 1.
Moses talks about integrating MySQL support through EF in Kigg.
Visual Studio 2010
3 new webcasts about Visual Studio 2010 are available on Channel 9:
Daniel Moth talks about the parallel stacks feature.
Silverlight 3 and Expression 3 are out there! Go and get it! More details from Somasegar, ScottGu and Nikhil Kothari.
Sebastian Burckhardt talks about Chess;s data race detection and ChessBoard on Channel 9.
Oleg show how to use T4 in order to improve the model-driven approach for LINQ to SQL applications.
Danny Simmons shares two interesting material from TechEd: POCO and EntityFramework 4.0 features and his sample code showing some useful tips for creating n-tier applications with EntityFramework shipped with .NET 3.5 SP1.
The ADO.NET team has an excellent post about how POCO works in EF 4.0.
Alex James continues the tips on EF:
Visual Studio 2010
Daniel Moth has three new articles about parallel programming:
John Robbins has an excellent post about PDB files.
Scott Hanselman continues the posts about the new features of C# 4.0 talking about the dynamic keyword and embedded interop assemblies.
Rob Conery continues the Kona experiment approaching BDD.