AOL has a cool article up today. It uses an optical illusion to determine whether you're left or right brain dominant. Give it a whirl here. According to this little test, I'm right brain dominant (creative).
I also found this quiz: Are You Left or Right Brained?, and I'm 55% right brained (creative) and 45% left brained (logical, analytical - well, that makes sense).
So, are you left or right?