Excelent OOP example - Generalizing storage access in ASP.NET web applications - | Gunnar Peipman - Programming Blog

This is one of the examples from a presentation made by a guy called Gunnar Peipman about how to port existing ASP.NET applications to Windows Azure and how to build hybrid applications that work in multiple environments. It simply, yet effectively demonstrates how to use OOP to achieve abstraction on the application from the storage access details.