NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Fun activities - by girls....for girls. http://www.missoandfriends.com/
This link will direct you to the World Strides page and the link to My Trip. Here you will also find the Election Center and an awesome "Create a Video" project. http://www.worldstrides.com