(Sample link) White House for Kids http://www.whitehouse.gov/kids/whlife/index.html
(Sample link) National Geographic for Kids http://www.nationalgeographic.com/kids/
Starfall http://www.starfall.com
First Grade Reading Curriculum http://www.smbsd.org/uploaded/reading/files/Miscellaneous/1st_Grade_Houghton_Mifflin_Reading_At_A_Glance.pdf