Is it just me, or did anyone else find the information in this article pretty basic? Even something like using the '+' operator in the email address and filtering based on that, or the fact that if you have a '.' in your gmail address, skipping the dot will still result in you getting the email...
I guess I am saying I was hoping for something more, like this one from Steve [http://www.micropersuasion.com/2007/12/become-a-knowle.html]