Stone Creek Trading: Stonecreektrading.com
My favorite resource for various-sized crocks in a variety of styles, crock weights, cabbage shredders, cabbage corers, cabbage pounders, and other supplies.
A great resource for glass jars with airlocks.
Wild Fermentation: The Flavor, Nutrition, and Craft of Live-Culture Foods by Sandor Katz
This book goes into depth about the process of fermentation as well as the history, and offers recipes for vegetables but also cheese, yogurt, bread and more.