Websites for kids that are not "junkfood"

My kids like to play games on the computer. They like PBSkids.org and other similar websites. While most of these websites are harmless, they are not benefitting my children in any way; in my opinion they are sort of a waste of time, kind of like "junkfood websites," okay in moderation, but well, you get the idea. However, I recently stumbled upon a few websites that are actually good for my kids, kind of like "raw veggie websites" if you will. These websites teach Biblical Truth about God and the world He created. These websites are food for their souls. Let me know if you get a chance to peek at any of these:

http://www.answersingenesis.org/kids


http://christiananswers.net/kids/


http://www.gqkidz.org/index.html

By the way, you can see that smiling cow again if you just scroll down a little more.