http://www.elpresa.com - wonderful source of info concerning the Presa and those who love them
http://www.realpresa.com - a breeder out of Illinois
http://www.red-star-kennel.com - a breder out of Wisconsin
http://www.showstopperkennels.com - a breeder out of New Jersey
http://www.irema-curto.com - a breeder from the Canary Islands
http://www.ctv.es/USERS/alacant-bull/index.htm - Alacant Bull is a breeder from Spain
http://www.barnacanbull.com - a breeder from the Canary Islands
http://www.arba.org - rare breed organization
http://www.vaxxine.com/rarities - rare breed organization
http://www.christiaantodd.com - Photographer