Jacques Mayol	Historical Diving Society USA
Umberto Pelizzari	Umberto's website
Apnea Academy	School for the Instruction and Research of Subaquatic Apnea
Vertical Blue	Apnea Academy freediving school
Ocean Man	A Large Format IMAX Film and TV Docu-Film
Water Sport top links	Freediving and Snorkelling Links
HARBOR BRANCH Oceanographic Institution	Marine Mammal Division
Divingindepth.com	online community for the diving enthusiast
oceanrealmjournal.com	Ocean Realm Journal
APNEAWORLD	by Iskandar Risso
Freediver magazine	Uk - APNEA Freediver magazine
deeper blue	Uk - Online resource for the Underwater World
Wild Blue	NZ - Freediving & Spearfishing site