So you think you know your SEO heh? SEOMoz.org have an expert SEO quiz, now please keep in mind that this is quite a serious test, 75 questions and expect to take 20 minutes or so to complete it but it’s well worth doing.
I was happy with my score of 95% although I could probably argue with a couple of their answers on what I got wrong. Never mind at least it gives me a cool name:-