This is a great new incentive program offered by Sylvan Learning, to help parents and children enjoy reading. It offeres rewards and ways of helping find books that are of interest and the right reading levels for students.
ESL style quizzes, helping students practice their English grammar skills.
Fun games that practice Language skills, like spelling or figuring out fiction versus non-fiction.  The voices and animations are fun.
Online practice comprehension quizzes, like fact vs. opinion, and such.  Not too flashy, but quality questions.  There is a pay version of the site that has more content.