Vocabulary: http://www.vocabulary.co.il/third-grade-vocabulary-games/
Henry Anker: http://www.henryanker.com/3rd_Activities.html
Internet 4 Classrooms: http://www.internet4classrooms.com/skills_3rd_original.htm
Brainpop Jr.: brainpopjr.com
Thinkfinity: www.thinkfinity.org
Funbrain: www.funbrain.com
Tumblebooks: www.tumblebooks.com