Programming Entity Framework

• MSDN Data Access and Storage Developer Center
• MSDN Library: Entity Framework 4 Core Documentation
• MSDN Library Entity Framework 4.1+ Documentation
   
• MS ADO.NET Team Blog
• MS Data Access Team Blog
• Entity Framework FAQ
  
• MSDN Entity Framework Forums
   
• Code Gallery Home Page for Entity Framework Team
  (ADO.NET Entity Framework projects, samples, toolkits, extensions and Learning Tools created by Entity Framework Team)
   
• CodePlex EFContrib
  A project for contributing EF Source Code
   
• Sample Databases from Microsoft 
   
• "How Do I" Videos from E.F. Team
• MSDN Videos on Entity Framework 4, Code First & DbContext
• Pluralsight Courses on Entity Framework
   
• 101 Visual Basic LINQ Samples (on MSDN)
• 101 C# LINQ Samples (on MSDN)
   
• My Entity Framework Articles
  Introducing ADO.NET Entity Framework CoDe Magazine Nov/Dec 2007 
  Data Access Options in Visual Studio 2008 CoDe Magazine Sept/Oct 2008 
  ADO.NET Entity Framework Overview SDN Magazine May 2009
  8 Entity Framework Gotchas CoDe Magazine July/August 2009
  
  Many EF Related Articles in MSDN Magazine Data Points
   
• DotNetRocks Audio and TV Shows related to Entity Framework
  Daniel Simmons on ADO.NET Entity Framework (April 2007)
  Julie Lerman on the Entity Framework (Feb 2008)
  Daniel Simmons on Entity Framework v1! (July 2008)
  DNRTV: Dan Simmons on The Entity Framework Part 2 (7/28/2008)
  DNRTV: Dan Simmons on The Entity Framework Part 1 (7/14/2008)
  Julie Lerman on Entity Framework 4.0 (1/7/2010)
  DNRTV: Julie Lerman on Separation of Concerns with Entity Framework 4.0 (12/28/2010)
   
• Information about EF Version 2 EF4 (EF in VS2010 & .NET 4.0)
  EF Team's Entity Framework Design Blog
  Entity Framework Futures Session at PDC 2008: Powerpoint, Video
  Community's Version 2 Wish List on MSDN Forums (add your own wish!)
  NEW! EF4 Beta MSDN Forums
  NEW! EF4 Beta MSDN Documentation

Various blogs by ADO.NET/EF Team Members and Evangelists at Microsoft

Rowan Miller romiller.com
Arthur Vickers blog.oneunicorn.com
Diego Vega (Entity Framework APIs)

Samir Bajaj (Developer on Data Programmability team)
Pablo Castro (Technical Lead)
Sushil Chordia (ADO.NET Team)
Andrew Conrad (Astoria Team)
Elisa Flasko (Community Program Manager for Data Programmability)
Mike Flasko (ADO.NET Data Services Program Manager)
Damien Guard (LINQ to SQL Team)
Alex James (Entity Framework Metadata Program Manager)
Ju-Yi Kuo (Entity Framework Developer)
Jaroslaw Kowalski (Entity Framework Test Engineer)
Craig Lee (EF Team)
Marcelo Lopez Ruiz (Astoria Team)
Colin Meek (Entity Framework Team)
Faisal Mohamood (LINQ to SQL and Object Services Program Manager)
Zlatko Michailov (former Entity SQL Program Manager)
Shyam Pather (Entity Framework Team)
David Sceppa (ADO.NET Program Manager)
Angel Saenz-Badillos (ADO.NET Team)
Danny Simmons (Entity Framework Team)
Mike Taulty (Developer Evangelist)
Erick Thompson (ADO.NET LINQ, Dataset, etc.)

Released Database Providers for Entity Framework

MSDN keeps an updated list at: http://msdn.microsoft.com/en-us/data/dd363565.aspx