The following are links to useful information:

-  American Kennel Club (AKC)        http://www.akc.org/
-  Orthopedic Foundation for Animals     http://www.offa.org/
-  Grampian Labradors      http://grampianlabs.com/
-  Canine Eye Registration Foundation (CERF)     http://www.vmdb.org/cerf.html
-  OptiGen prcd-PRA       http://optigen.com/
-  The Labrador Retriever Club, Inc.     http://thelabradorclub.com/