ABCYa
Schoology
Typing Club
Math Antics
Search Engines
Ask for Kids http://www.askkids.com/
Quinura http://quinturakids.com/
Kartoo http://www.kartoo.com/
KidsClick http://www.kidsclick.org/
Meta Search http://www.metacrawler.com
DogPile http://www.dogpile.com