|Despite its focus on dating, okcupid is quite amusing. Take the quiz, chortle at question 46, be irked at how completely wrong the result is, then spend several hours obsessive-compulsively answering all 462 post-quiz questions that are currently in their database, only to be told that you're 93% compatible with the person you're already with, and only 86% compatible with the next most compatible person in the entire world.|
It's quite a clever design though - user-submitted questions being automatically sorted for relevance is a clever way of providing whatever filter one might deem important. The mathematical explanation of how the match percentage is calculated seems very much fair and sensible. And the site creators have a pleasing subtle, and sometimes not-so-subtle sense of humour.