The Entity Framework is .NET implementation for ORM. The Entity Frameowork is very similar to Hibernate and JPA. If you are already familiar with those other two systems you will be amazed how smooth it is working with the Entity Framework.
I have recently completed the slides and the video clips for the first topic of my Entity Framework community course. You can find its community version available for free personal usage at www.abelski.com.
The following are few samples for the video clips I chose to prepare for this course. The next topic I am currently working on for this course covers the various possibilities for querying the entity model.