Sesame Workshop 

The non-profit educational organization behind the show and related educational outreach.

www.sesameworkshop.org/

National Gallery of Art NGAkids Art Zone

NGAkids Art Zone offers an array of interactive online art activities that are fun for children of all ages.Interactives such as Photo Op, Dutch Dollhouse, ...
www.nga.gov/kids/zone/zone.htm

BrainPOP - Animated Educational Site for Kids - Science, Social ... 

Animated Science, Health, Technology, Math, Social Studies, Arts & Music and English movies, quizzes, activity pages and school homework help for K-12 kids, www.brainpop.com

NASA
www.nasa.gov/

San Diego Zoo 

San Diego Zoo and San Diego Zoo's Wild Animal Park.
www.sandiegozoo.org/