Diver Resources Dive Rescue International - http://www.diverescueintl.com Hammerhead Press - http://www.hammerheadpress.com International Association of Dive Rescue Specialists (IADRS) - http://www.iadrs.org Maryland Fire and Rescue Institute - http://www.mfri.org National Association for Search and Rescue - http://www.nasar.org/nasar Ocean Technology Systems - http://www.oceantechnologysystems.com PSDiver - http://www.psdiver.com PSDiver Discussion Group - http://groups.yahoo.com/group/PSDivers-PublicSafetyDiversForum Rescue 3 International - http://www.rescue3.com Rescue Source - http://rescuesourcestore.com Team Lifeguard Systems - http://www.teamlgs.com
