The Society of California Archivists, formed in 1971, is a professional association devoted to the support and development of individuals and institutions that collect, care for, and provide access to the documentary heritage of California and adjoining areas.

The Southern California Library for Social Studies and Research primarily documents and preserves the history of twentieth-century radicalism and social change through progressive movements in the greater Los Angeles area. The materials held by the library relate to the labor, peace, social justice, civil rights, women’s, gay and lesbian, and various other grassroots movements.