Stefan Cruysberghs a publié (en anglais) une série de trois articles (récents) sur l'Entity Framework qui proposent un tour d'horizon assez intéressant de cette technologie.
En voici le sommaire (avec accès direct aux articles): 

• The Entity Framework architecture
• Installation
• Generate an Entity Data Model
• The Entity Data Model (EDM)
  • LINQ to SQL Diagram vs. Entity Data Model
  • Names of EntityTypes and EntitySets
  • Scheme file (EDMX)
  • Model Browser
  • Mapping Details
  • Generated entity classes
  • Documentation
• Entity SQL
  • ObjectQuery queries which return entity types
  • ObjectQuery queries with parameters
  • ObjectQuery queries which return primitive types
  • ObjectQuery queries which return anonymous types
  • EntityCommand queries which return entity types
  • EntityCommand queries which return anonymous types
  • EntityCommand queries with parameters
• LINQ to Entities
  • LINQ queries with parameters
  • LINQ queries which return anonymous types

Part 2 :

• View SQL statements
  • SQL profiling tools
  • ToTraceString method
• Tools
  • eSqlBlast
  • LINQPad

Part 3 :

• Add, update and delete entities
  • Update (modify) an entity
  • Add (create) and entity
  • Add (create) entity with associated entities
  • Delete an entity
• Concurrency handling
  • Set ConcurrencyMode
  • Resolve concurrency conflicts
• Change tracking
  • ObjectStateManager
  • Dump() & DumpAsHtml() extension methods
  • NoTracking option

Si vous préférez accéder aux trois articles séparément :

• .NET - ADO.NET Entity Framework & LINQ to Entities - part 1
• .NET - ADO.NET Entity Framework & LINQ to Entities - part 2
• .NET - ADO.NET Entity Framework & LINQ to Entities - part 3

Bonne lecture !