International Baccalaureate Organization http://www.ibo.org
Opportunities to practice letter-sounds and reading http://www.starfall.com
Play games, listen to books...all having to do with Clifford! http://www.scholastic.com/clifford
Lots of fun activities http://www.brainpop.com
Enter in the week's spelling and red words and this website provides games using those words! Great way to practice for the spelling test. http://www.spellingcity.com