White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
National Geographic for Kids http://www.nationalgeographic.com/kids/
Social Studies http://www.harcourtschool.com/hss/
Human Origins http://www.becominghuman.org/
Spaceweather (solar flares, sunspots, comets, etc.) http://www.spaceweather.com/
Math (click on "For Students" then enter Class Code) http://www.mhln.com
Times Table (Mixed) Practice - timed http://www.coolmath4kids.com/times-tables/Timernator-multiplication.html
Lexile Reading Levels, Search Books/Authors http://www.lexile.com
Current Parent/New Parent Springbrook Montessori Information http://members.cox.net/irvinepublicmontessori/
Social Studies http://www.harcoutschool.com/hss/