NOAA National Undersea Research Center
NOAA National Marine Sanctuaries
http://www.sanctuaries.nos.noaa.gov/welcome.html
Monitor National Marine Sanctuary
http://www.monitor.nos.noaa.gov/
Historical Diving Society
Liquid Pictures
Marine Technology Society
American Academy of Underwater Sciences
Our World Underwater
Divers Alert Network
http://www.diversalertnetwork.org
Cambrian Foundation
http://www.cambrianfoundation.org
Immersed Magazine
Undersea and Hyperbaric Medical Society
National Association of Underwater Instructor
Advanced Diver Magazine
http://www.AdvancedDiverMagazine.com
Professional Association of Underwater Instructors
Rodale's Scuba Diving
Rick Allen Presents; Nautilus Productions