What is a Koha Interest Group (KIG)?
It's a support group for people and libraries within a region that are using or interested in Koha. The KIG sports a website with useful information, an email list, and (hopefully) some regularly scheduled meetings (quarterly is probably the right time frame, but there's not reason you couldn't do them monthly or semi-annually if that works out better for you).
In the event that there are Koha developers in the area, so much the better. Invite them over for the KIG meeting. Just remember that this is really a user oriented group, so don't try and run a hack-fest or anything ;^)
Right now, there are a couple of groups that may be starting soon. I'll note them here, but I'll leave it for people to add there own names/libraries and to start adding content to the individual KIG pages.