International Planetarium Society:Organization, events, publications, planetaria worldwide, and resources.Great Lakes Planetarium Association: About the society, membership, conferences, newsletter, state organizations, and resources.Great Plains Planetarium Association: Conference information, members, news, and links.Middle Atlantic Planetarium Society: Annual conference information, publications, officers, committees, history, and links.Pacific Planetarium Association: Membership list, newsletter, resources, officers, and committees.Southeastern Planetarium Association: Information, membership, conference, council, by-laws, history, and links.SouthWestern Association of Planetariums: Conference information, officers, members, and resources.