Mozilla Development Center – https://developer.mozilla.org/en/Web_Development
MSDN – Entity Framework – http://msdn.microsoft.com/en-us/library/bb386964.aspx
Entity Framework – http://naspinski.net/post/Getting-started-with-Linq-To-Entities.aspx
MSDN – The ADO.NET Entity Framework– http://msdn.microsoft.com/en-us/data/aa937723.aspx
MSDN – .Net Framework Class Library – http://msdn.microsoft.com/en-us/library/ms229335.aspx
MSDN – Data Development Videos (Entity Framework) – http://msdn.microsoft.com/en-us/data/cc300162.aspx
MSDN – When to use Linq to SQL vs When to use Linq to Entity – http://msdn.microsoft.com/en-us/library/cc161164.aspx
Eight Entity Framework Tutorials on DataDeveloper.NET – http://thedatafarm.com/blog/data-access/eight-entity-framework-tutorials-on-datadeveloper-net/
Application Scenarios (Entity Framework) – http://msdn.microsoft.com/en-us/data/bb738689.aspx
http://code.msdn.microsoft.com/EFDocSamples2008