Spelling City http://www.spellingcity.com/
Envision Math https://www.pearsonsuccessnet.com/snpapp/login/login.jsp
Reading and Math http://www.studyisland.com/
Scholastic http://www2.scholastic.com/browse/home.jsp
Cool Math http://coolmath.com/
Book Adventure http://www.bookadventure.com/ki/