Fun Brain is a neat website. It offers help with reading as well as some really fun games!
ABCYA.com is a wonderful website that has plenty of fun, interactive games that can be used for review and building knowledge.
Typing.com is a great website to practice keyboarding skills such as typing.
This is a fun way to review maps maps from all over the world.
Math Playground is anoth fun website that focuses on math educational games.