AR Bookfinder
Parents can use this site from Accelerated Reader to determine the reading levels of the books they are selecting for their children.
Family Education
Parenting resources, articles, and advice from baby names through college planning! From the creators of the Infoplease and Fact Monster websites.
Lexile.com
A tool for parents to determine grade levels of the books they are selecting or to find suggestions for grade-level appropriate books, using the Lexile Framework.