I am not sure if you are aware of this competition. If not I will strongly recommend you to visit http://xmlchallenge.com/ and select your country.
Take a quick quiz and start participating in the competition. The competition is for the people who are either database professional or students who are learning database technologies. You have the option of choosing administration or the programming contest. There are a lot of cool prizes to be own at every level of the competition.
So what are you waiting for ? Participate, learn and win...
Search for XML superstar... Have you participated??