The Dog's Diner

The RFVS is a group of veterinary professionals who have come together to educate the public and others in the profession about the benefits and pitfalls of feeding a species appropriate diet to their patients. It is UK based but has members throughout the world.
The site has articles and videos about the art and science of feeding a natural diet.

RFVS Mission Statement

To promote the principles and practical aspects of species-appropriate nutrition, through education of veterinary professionals and the pet-owning public.

Raw Essentials is a website and group of raw feeding stores in New Zealand set up and written by Dr Lyn Thomson a Veterinary Surgeon with a vast knowledge and experience of Raw and Natural feeding. I find the wealth of information on the site very useful and inspiring

Perfectly Rawsome
An American Site and Raw shop full of useful Information and Raw species appropriate feeding. Guides for starting cats and dogs on raw. Excellent resource

Natural Petcare
A site written and run by local veterinary surgeon Graham Hines with a section about raw feeding as well as other Natural Medicine topics.