Each region has an association to keep the members in contact with each other. Most associations have a website and some have a forum. All are affiliated with the international association. The organization is not tight, each region operates on its own, but the teaching is strict and according to tradition.
Link to the MaGui Bagua Promotion Centre Branch Association in Japan (in Japanese, but has photos and stuff). This is the new site.
Link to the Quebec MaGui Bagua site, in French.