I liked the website (this coming from a skeptic like me is a huge compliment, mind you). I liked the orderly, quiet layout and moderate colors, which for me as an aspie are very important. And the advice is good, if very basic (I didn't pay to see the advanced content because I don't want to use my credit card online). The advice to learn the principle instead of the list of rules is a great advancement in terms of what is offered as advice to aspies in our time. Congrats on that!
Only criticism would be: it always makes me cringe when people give autistics the advice to request the feedback of trusted friends - if we had a few such good friends that were wise and kind enough for us to benefit from their feedback, we wouldn't be trying to improve our social skills.
I think a link to the website would be good as a sticky, though I don't know if it would be accepted by the mods due to the non-free nature of part of the website...
I'd like to see what is in the Joining Groups section, but for a/m reason, I'll die not knowing... Unless my feedback contribution in this post makes you want to reciprocate... 
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There are two means of refuge from the miseries of life: music and cats - Albert Schweitzer