Preschool Express
Great parent resource! Lots of activities and suggestions for things to do with your little ones that aren't necessarily on the computer.
Literacy Center Play and Learn
Alphabet, shapes, numbers, writing, keyboard
Lots of worksheets and printables.
Lil' Fingers
Storybooks, games, coloring, holidays, videos
Very simple for little ones
C Beebies from BBC
watch, make and color, games, story time, songs
Lots of fun with a british accent.