National Geographic -Online Magazines for Kids
Both sites have beautiful photos along with interesting articles on a variety of science topics.
Children can read stories or have the articles read to them. It highlights words as they are read.
More advanced articles.
A site dedicated to helping parents learn about great books for children aged 4-14
This is a free site that allows you to add your child’s spelling words. Your child can take a test and play a variety of games.