I set up a social group for people with Asperger’s in 2002 in Ireland. We have about 10-12 members who turn up every second Sunday, about 100 people have come to meetings over the years. It’s a social group, and being just a social group it is a support group too.
I agree that AS is not something that needs curing, but it can make people very lonely and isolated. Most people who go to the meetings just want to socialise, we go to a quite bar. Running the group is easy, it’s just a few friends meeting up. That may seem simple, but it can be astrophysics for some who have never met people in a social situation before. Meetings have a tendency to self-organise, just get enough people together and you will have a social group.
Also, to prevent meetings from falling into a boring routine I ask members if they are getting bored and ask them if they want to do something different, I found that members rarely complain when they are bored, they just leave. So we go to a restaurant for a meal instead of the bar every few weeks, it keeps meetings fresh.
As for support aspect, we have social skills class running in parallel to social group and it’s in its second year. It is on a Monday evening. I also have lots of books, CDs and videos on AS/autism that I lend to people.