I have the full support of the IPMS USA using the globe in any form as part of the logo - mostly because the majority of chapters and sigs use it in some way shape or form
clevermod01 - joining is easy, you build models and hang out on this site. being an ipms member is helpful to the official side of the sig but really only the founder (me) needs to be a member. They prefer to have at least 5 active IPMS members in a sig but its not required. We are there anyway in that regards!
Of course the most important part is being active in helping promote the sig in your area at ipms meetings and shows
I see you are in chicago! if you attend any shows let me know - only a couple hours away
Chris