I had nothing to do with it but my occasional employer Jim Davis has set up a new educational website for kids. It's called Professor Garfield and while I didn't have time to browse the whole site, what I saw seems quite well done and, yes, even educational. Some nice music, some excellent Flash animation, some clever games and presentations. The budding cartoonist in your family will enjoy the Artbot section where Jim and three other artists give drawing lessons. There's also a trivia game and I'm ashamed to admit that I got beaten. (I'm not up on my SpongeBob lore.) Recommend it to someone young.