The Tea Leaf Club is a nonprofit organization dedicated to the study and collection of

The Majolica International Society, founded in 1989 with just 45 members, has enjoyed membership of more than a 1,000 enthusiastic individual collectors, dealers, authors and historians from across the globe.

Recognizing the complexities of preserving architectural terra cotta, The Friends of Terra Cotta, Inc. provides information and expert resources to assist the process.

International Willow Collectors (IWC) is a group of people who collect willow-pattern china and other willow wares.

The Wisconsin Pottery Association (WPA) is a non-profit 501(c)(3) organization under federal regulations. Its mission generally is to promote knowledge and appreciation of art pottery among its members and the general public.

In 1988, the Southern Folk Pottery Collectors Society

The Red Wing Collectors Society was founded in 1977 in Red Wing, Minn. and is devoted to providing education about all American pottery. There are more than 4,500 members worldwide.

The North Dakota Pottery Collectors Society is an organization, which was created to enhance collecting interest in the types of pottery made in North Dakota.

Nancy Brock and Norma Jones co-founded the National Autumn Leaf Collectors Club (NALCC) in the fall of 1978.