Difference between http Modules and http handlers | Walkthrough, Example http Modules and http handlers

Below are the best learning and sample implementation resources links to know all about http Modules and http handlers in asp.net.

1. http://www.codeproject.com/Articles/30907/The-Two-Interceptors-HttpModule-and-HttpHandlers
2. http://www.codeproject.com/Articles/335968/Implementing-HTTPHandler-and-HTTPModule-in-ASP-NET
3. http://stackoverflow.com/questions/6449132/http-handler-vs-http-module
4. http://msdn.microsoft.com/library/ms227673.aspx