Ninject is an awesome open source library to implement Dependency Injection in any Microsoft.NET applications. Today I started a new ASP.NET MVC 3 project and for implementing dependency injection Niject was the first choice.
To get started with Niject the following two videos from dimecast.net site helped me a lot.
The above two videos are close to 20 minutes in length and provides great insights on how to get started with basics of Niject.
If you are looking for a sample ASP.NET MVC project with NInject integration, you can download the code provided in the post Dependency Injection in ASP.NET MVC 3 using Ninject.