Tracker, I think the site is terrific. I would offer one suggestion - have a solidly NT person look at it (I am not such a person.) While I like a lot of specifics and explanation, I wonder if an NT parent might be overwhelmed with too many words or too much information at once (while I lean towards the NT side, I have some definite AS tendencies, wordiness being one of them.)
Again, add a PayPal link, or at least hook up with Google Adsense and Amazon Associates or something.