ReadWorks.Org - Free sign up for Parents - Students can read Ebooks on their own level and answer comprehension questions
Wordville.com - Free Stories for students to read on their own. Students will then answer comprehension questions
ReadTheory.Org - Free reading passages with comprehension quizzes
Parents must sign-up for Parent Account (not student account)
Have your child complete the first quiz without any assistance (it will establish your child's reading level FYI - it starts at the 3rd grade level and will adjust up or down)