Websites for student learning

I found these sites from the math investigations page, but there are a ton of games websites, enjoy!!!
http://www.mathinvestigations.com/StudentMathLinks.html

I also found this gamequarium site and loved it!  You can explore the different options it offers; however, I have included the ones that I liked.  I think that the ebooks and fluency section is awesome because it has books that are read aloud to the students as well as books that they have to read on their own.  It is important to include both for your children.  Fluency is an important piece to reading because when a child is fluent then they may begin to comprehend and develop a love for reading. 
http://www.gamequarium.com/; http://www.gamequarium.org/dir/Gamequarium_Junior/; http://www.gamequarium.org/dir/Readquarium/; http://www.gamequarium.org/dir/Readquarium/Fluency_and_eBooks/

If anyone has found some that they like as well please share!  The more the merrier!!!