Southern California Marine Aquarium Society
- SCMAS pages include meeting and membership information, a message board, and an image gallery.
- http://www.scmas.org

Dallas/Fort Worth Marine Aquarium Society
- Meeting information, online membership application, trading post, newsletter,and pictures of members' tanks.
- http://dfwmas.org

Chicagoland Marine Aquarium Society
- Newsletters, membership and meeting information, forums, photos, and links. Open to all saltwater enthusiasts in the tri-state area.
- http://www.petsforum.com/cmas/

San Diego Marine Aquarium Society
- FAQ, membership and meeting details, gallery.
- http://www.sdmas.com/

Marine Aquarium Societies of North America
- Includes MASNA calendar of members' events, news about the aquarium industry, and a chat room.
- http://masna.org/

Washington Area Marine Aquarist Society
- Gallery, WAMAS meeting and membership information.
- http://www.wamas.org/

Marine Aquarium and Reef Society of Houston
- Includes meeting information, articles on aquarium keeping, pictures of members' tanks, and a bulletin board.
- http://www.marshreef.com/

Marine Aquarist's Association of South Texas
- Meeting announcements, forums, image gallery, newsletter, and calculators for a San Antonio-area group.
- http://www.maast.org/

Pittsburgh Marine Aquarium Society
- Meeting and membership details, and club background information.
- http://www.pmas.org

Pacific Northwest Marine Aquarium Society
- Forum, surveys, stories archive, and reviews. Site requires registration, which is free.
- http://www.pnwmas.org

Oklahoma Marine Aquarium Society
- OMAS meeting, contact details, and photos.
- http://www.omas.org/

West Michigan Marine Aquarium Club
- WMMAC club information, meeting minutes and pictures, coral database, forum.
- http://www.wmmac.org/

Chesapeake Marine Aquaria Society
- Meeting and membership details, gallery, library list, and forum.
- http://www.cmas-md.org/

Louisville Marine Aquarium Society
- Meeting and MACNA XVII information, classifieds, pictures of members' tanks, and articles about keeping marine aquariums.
- http://www.lmas.org/

Central Illinois Marine Aquarists
- Meeting and membership information, forum, links.
- http://www.cimaonline.us

Idaho Marine Aquarium Society
- Club FAQ, contact information, and gallery. Boise, Idaho area.
- http://www.idahoreefs.org/

Atlanta Southern Marine Aquarium Society
- Meeting information, tank of the month video, forum, sponsors, and list of members.
- http://atlanta-smas.org/

Florida Marine Aquarium Society
- Events list, annual show information, membership application form.
- http://fmas1955.org/

Marine Aquarium Society of Los Angeles County
- Maslac meeting information, library catalog, photos of members' aquariums.
- http://www.maslac.org/