Food
Cooking with Clay – facebook group
Cooking with clay over fire is one of the most delicious, easy and fun ways to produce good food, understand the basics of cooking and help preserve craftspeople and traditions.
Cooking with Clay Facebook description
Campaign for Real Milk
Information on raw milk and how to source it.
Milk: The Surprising Story of Milk Through the Ages
The history of raw milk, and the various products made from it. Lots of recipes.
Nutrition and Physical Degeneration
Looks at the health of traditional cultures to understand the chronic conditions of modern cultures. — Weston A. Price
Weston A. Price Foundation
Information on nutrition and health, aiming to provide scientific validation of the traditional foodway.
FirmUp
A podcast and blog about food fermentation. A good introduction to all fermented foods, including yogurt.
by Ann Mendelson
Sandor Katz
His website includes a blog and information about his books, resources & events. His books are considered fermentation classics. Sandor calls himself a “fermentation revivalist” and he is known affectionately as Sandorkraut.
Books by Sandor Katz
Image from https://www.wildfermentation.com 
Hilda’s Touch of Spice
Cuisines from around the world — including lassi, buttermilk, curd rice
Ayurveda
Banyon Botanicals
Known for their quality supplements and products. They offer lots of free educational material.
Dr. John Douillard
Leading Ayurvedic blogger. You can learn a lot from his blog without purchasing any supplements.
Vasant Lad, BAMS, MASc
The most respected Ayurvedic practitioner in the US.
Food Combining — a useful chart by Vasant Lad
Vegan
A complete guide to making dairy-free curd/yogurt!
Blog post from Hyderabad Vegans, very detailed
Artisan Vegan Cheese
By Miyoko Schinner – The classic vegan cookbook, contains information on yogurt making
Health-related search engines
GreenMedInfo
The world’s most widely referenced, evidence-based, natural health resource with over 10,000 health topics and 50,000 peer reviewed abstracts.
PubMed
US National Library of Medicine National Institutes of Health. 29 million citations.