There is no "community" in the sense that you seem to be looking for. We have no office(s). We have no officers. The only agenda we seem to have is that OC should be as well tolerated by the general public as seeing soccer moms pushing baby strollers. To that end we all, in varying ways and at varying levels, seem to support an agenda of pushing for legislation to a) restore rights previously legislated away and b) improve protections against that happening again.
And welcome to OCDO. Please stick around and read lots of threads to see what and who we are.
As for volunteer opportunities - the only thing I can think of is to babysit Peter Nap's berry patches and shoo the bears away. He seems to have little success in keeping that position filled.