The following links to websites are in no particular order:

Single sign on (OUSD Dashboard) ( Student login for OUSD online programs and information.

Funbrain (
Clickable educational games with problem solving and graphics.  Math  and literacy challenges (ages 6 and up)

Starfall (
Phonics-based site cultivates literacy with animated stories and activities for beginning and new readers. (ages 3-7)

National Geographic Kids (
Photo galleries, activities and games have the excellent educational content and high production values you would expect from NatGeo, but it is the unusual science and animal videos that really steal the site!