www.spellingcity.com/jsellen/  has all of our spelling words by units

www.xtramath.org   each student has a password- helps with math facts

www.learninggamesforkids.com  cool site for all subject areas- especially math

www.mathplayground.com

www.interactivesites.weebly.com all subject areas- very good site especially math

www.edutyping.com