Heady project, it depends on the scope you're aiming for.
If it's more local, you can dig up resources in the area, be it Behavioural Therapists, Speech Pathologists, support groups for both Autistic folk and their families, even activities that are tailored to those on the spectrum (some communities have therapeutic horseback riding for example, or SPCA-sponsored dog walking, that kind of thing).
It's nice to have a section for newly diagnosed families on what to expect, links and direction for federal/state resources, helpful tips like not setting unrealistic expectations, planning activity transitions out in advance, etc (though that's trickier as individuals handle variables differently).
Heck even a curated section of ASD-friendly phone/tablet apps isn't a bad idea in this day and age, though that's the kind of thing that needs updating and not sure how long-term this is.
http://a4cwsn.com/ was a decent resource back in the day for help with that.