Ninject.Web.Mvc3 provides a base infrastructure for MVC3 applications based on Ninject.
The source code comes with a sample application that demonstrates most of the features of the MVC3 extension. It can be found here or download it with a git client.
Ninject.MVC3 also supports MVC 4 RTM (and RC) also as none of the ASP.NET MVC interfaces have changed significantly
Note that ASP.NET Web Api (which ships with MVC 4 but is actually on a parallel stack) interacts with dependency injection containers using a different interface hence requires additional work. This support is not yet in the production
Ninject.MVC3 package at the present time. Here is a blog post showing one way of achieving integration in MVC 4 RTM