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.

The Topanga Historical Society (THS) was organized in 1974 by a group of dedicated community leaders who recognized the urgent need to collect and preserve records of Topanga’s unique history and to make them available to future generations. The Society maintains an Archive Center and presents quarterly local history programs.