(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/
Math Link http://www.amblesideprimary.com/ambleweb/mentalmaths/dividermachine.html
Mad Math Minutes http://mrsbogucki.com/aemes/resource/apps/madmath/default.htm
Math Frog http://cemc.uwaterloo.ca/mathfrog/english/kidz/div6pc.shtml
AR Book Line http:/www.arbookfind.com/