(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/
Fun ways to get kids writing http://www.writingfix.com/writingfix_for_kids.htm
A great way to practice weekly spelling words. http://www.spellingcity.com
Fantastic website that includes a variety of games and lessons for ELA review http://www.internet4classrooms.com