What does your email address mean?

Michel sent us this story where you can read an interesting formalization of something we already know:Some email domains are just 'cool'. @well.com is cool, @aol.com isn't. It's interesting to see the mainstream press trying to explain that sort of thing. (Note:Please do not beg for @slashdot.org addresses! The server is too slow, and I don't have time to administer accounts!)