public class User
{
public string Name { get; set; }
}

I have 4 C# projects in my solution:
MyProject.Data for data access
MyProject.Services for business logic
MyProject.WebApp the MVC Website
MyProject.Model for my simple application classes like the user class

The last project contains no business logic – and in the MVC “Model” folder is nothing. The whole business logic is inside the services layer. That´s why I said, that in the model is no business logic.

See at Rob Conerys MVCStorefront project – it´s much like that