Check out my more recent ideas on repositories on my blog:

• Composable repositories

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A repository pattern implementation for Code First.

The compile library is avaliable on NuGet via Install-Package StaticVoid.Repository or http://nuget.org/packages/StaticVoid.Repository

More information about how to use this solution and what the package does can be found on my blog here (http://blog.staticvoid.co.nz/2011/10/staticvoid-repository-pattern-nuget.html)

This is intended for usage with an IoC repository injection pattern. To bind to the repository in Ninject simply use:

kernel.Bind(typeof(IRepositoryDataSource<>)).To(typeof(DbContextRepositoryDataSource<>)); 
kernel.Bind(typeof(IRepository<>)).To(typeof(SimpleRepository<>)); 

this will allow you to inject repositories using the form IRepository<T> in your service implementations. Repository will have basic methods implemented for the type to allow crud.

Licensed for usage under LGPL, http://www.opensource.org/licenses/lgpl-3.0.html