Ioc Ninject tool's basic information
What's Ninject? Looks like Ninject is greate tool for you to do Dependecy Injection, You could use Ninject for your Unit-Test, wrapper your Interface with your impremenataion file.
This's article is about to provide, basic information about Ninject, links, relatived blogs for learning.
Create your Dependency Injection Today!
Following is few links
Download => Ninject Web MVC Source Code
Article => Ninject Injection Pattern
Article => Ninject Injection Pattern 2
Blog => Dependency Injection in ASP.NET MVC 3 using Ninject
Download => Ninject MVC 3 Demo
Blog => Dependency Injection : Begginer's Guide
Blog => MVC 3 + Ninject + Moq + Unit Test Step By Step
Blog => Dependency Injection in MVC 3
So, using Ninject for Dependency Injection'll help your for Unit-test, Layour Model Architect a lot.