Time For Kids: News for kids. http://www.timeforkids.com
Kids National Geographic http://kids.nationalgeographic.com/
PBS Kids http://pbskids.org/readingrainbow/
Scholastic for Kids http://www.scholastic.com/kids/stacks/index.asp
Starfall: Here is a great site that will change up your nightly reading routine. http://www.starfall.com/n/level-c/index/load.htm
Funbrain: Great online stories for all ages. http://www.funbrain.com/brain/ReadingBrain/ReadingBrain.html
Houghton Mifflin Reading Activities http://www.eduplace.com/kids/hmr/