Sheffield Pottery mines and formulates all of the clays we use here at Trumbull High School. They are a family run business and the finest clay suppliers on the East Coast. http://www.sheffieldpottery.com
Continental Clay is a great resource for specialized clay tools and exotic ingredients. http://www.continentalclay.com
Youngberg Pottery- my personal site. A place where I share my most current information. http://www.youngbergpottery.com