(Sample link) White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
(Sample link) Fun activities - by girls....for girls. http://www.missoandfriends.com/
http://www.mathcats.com/explore/tessellationtown.html
http://www.mathcats.com/explore/polygons.html
http://www.funbrain.com/numbers.html
http://www.coolmath4kids.com/
http://www.mathsyear2000.org/
http://nces.ed.gov/nceskids/createagraph/
http://brainquest.com/player/
http://www.multiplication.com