If you are interested in contacting other SOHC/4 members in your area, drop me a line at admin@sohc4.net. We have 4000 members and I am willing to send an invitation to members in specific regions to participate in a forum, or mailing list about regional events.
Back in the SOHC/4 mailing list days, when it was a bit more intimate, there were annual group rides and other events that took place in the US and Europe. In the mid-Atlantic states, for instance, we usually had 2-3 rides a year with winter meet-ups.
Recently, I set up some regional mailing lists using Googel groups; I don't know that they've taken off at all though. It might be just as well to set up more focused forums here in the Club section since you can subscribe to the forums and get email alerts of new posts. If someone wants to volunteer to be a regional rep, I can work with you to get the word out, make you moderator of the regional forum, and get information up on sohc4.net to publicize your group and point people to your site if you want to create one.
