Book Adventure. A reading motivation program for children in grades K-8. It offers recommended reading lists by grade level along with rewards for reading accomplishments.
From the site:
Book Adventure is a FREE reading motivation program for children in grades K-8. Children create their own book lists from over 6,000 recommended titles, take multiple choice quizzes on the books they've read offline, and earn points and prizes for their literary successes. Book Adventure was created by the Sylvan Learning Foundation and is sponsored by Sylvan Learning, Inc.