F.W.
Here in VA, every school district has a 'parent education resource center' manned by volunteer parents, many of whom have 'special needs' kids. They are as helpful as the respective skills/experiences of the parent volunteers demonstrate.
For me, I have met, and networked informally with other parents with a broad spectrum of special needs kiddos.
There are some national organizations that can be of help:
CEC (Council for Exceptional Children)
Peatc (Parent Educational Advocacy Training Center)
As well as many organizations/groups that deal with specific special needs.
Also, my daughter's school has an organization called the 'Self Determination Club'. There are many activities that are sponsored for special needs kids. I am not sure if it is local, or national...But I have met many parents and kids through the myriad activities that club sponsors.
Also, a large group of parents in a tri county area began a group on facebook for special needs issues, and many issues have been addressed in those counties as a result of facebook contact. (one of the FEW successful things to come from MY FB experience...lol). I have also met many of these families through this facebook group.
I wish you the best!