Renaissance Home Connect
https://hosted245.renlearn.com/268300/HomeConnect/login.aspx
This website is a great way to monitor and encourage your child's reading and/or math practice.  Monitor your child's progress.  Have your username and password ready to input.

AR BookFinder
http://www.arbookfind.com/UserType.aspx
Search for books AR levels.  Please make sure the books the students read follow their ZPD.