Continents Question

Boys and Girls, I'm excited to tell you that we have now had visitors view our blog from four of the seven continents!  Can you name the continents that we have had visitors from? If you know the answer, post it as a comment. Some of the dots on our ClustrMap have temporally disappeared. Here is a map off my blogger site to look at. The areas in green are the ones that people have visited us from.