SEOmoz, randfish, created an SEO Quiz, in reaction to the SEW thread asking you to Vote for the Most Knowledgeable SEW Forum Member. If you look at the Leaderboard, you will see some well known forum member's names. I personally find the "texas holdem - spammer ;)" link to be funny.
Forum discussion on this started mid-way in the thread linked to above. I think it is a fairly good quiz, I have some suggestions for revising some of the questions and answers. Danny Sullivan has his ideas as well, including "I want more. I want a news quiz each month."