CMS is an international organization devoted to the study of clays and clay minerals. We encourage exchange of research findings through the publication of Clays and Clay Minerals, sponsorship of an annual meeting, special publications, the Source Clays Repository, and other network-building activities. Our members belong to AIPEA (Association Internationale pour l’Etude des Argiles), have access to our journal, and receive Elements, a magazine designed to integrate different sub-disciplines such as mineralogy, petrology, and geochemistry. It includes regular features, news of the societies, awards, announcements of publications, book reviews, and a calendar of future meetings.