SQUALUS Fundacion colombiana para la investigación y conservación de tiburones y rayas

FUNDACIÓN MALPELO y otros ecositemas marinos www.fundacionmalpelo.org	Fundacion OMACHA http://omacha.org/	Instituto de Investigaciones Marinas y Costeras "José Benito Vives de Andréis" http://www.invemar.org.co/

Florida Museum of Natural History www.flmnh.ufl.edu/fish/Sharks /sharks.htm	Catalog of Fishes www.calacademy.org/ research/ ichthyology/catalog/	SBEEL - sociedade Brasileira para o Estudo de Elasmobrânquios http://www.sbeel.org.br

MOTE Marine Laboratory www.mote.org	Panama City Laboratory NOAA www.sefscpanamalab.noaa.gov/shark	The Natal Sharks Borad www.shark.co.za

The IUCN/SSC Shark Specialist Group www.flmnh.ufl.edu/fish/ Organizations/SSG/SSG.htm	American Elasmobranch Society www.flmnh.ufl.edu/fish/ Organizations/aes/aes.htm	European Elasmobranch Association www.eulasmo.org

Shark Trust http://www.sharktrust.org/	South African White Shark Research Institute www.whiteshark.co.za/content.htm	Mediterranean Shark

The Basking Shark http://www.baskingsharks.org/	The Whale Shark www.whalesharkproject.org	Elasmoworld www.elasmoworld.org/

Tiburones fósiles http://www.elasmo.com/	Fishbase http://www.fishbase.org/search.php	Literaturdatenbank www.shark-references.com