(Sample link) NASA for middle-school students http://www.nasa.gov/audience/forstudents/5-8/features/index.html
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
puzzles and games http://www.brainpop.com/
word of day and translations http://dictionary.reference.com/
practice test and daily activitiew http://internet4classrooms.com/
author information for research http://www.teenreads.com/
word of day and word puzzles http://www.vocabulary.com/