Need Source Code / Article for understanding Hooks and How to Implement them

Hi, I need some simple source codes and tutorials for learning and understading how to implement and use Hook Functions, I searched through Code Project, But not interesting, I can't find good things.

thanks

Windows hooks samples

A good tut here Windows Hooks the language is masm but that wont be a problem.

Everything is in MSDN : complete article with the sample C application (main form + DLL) with all the hooks !