- Academy of Motion Picture Arts and Sciences, Academy Film Archive
- Arcadia Public Library, Arcadia History Collection
- Autry Library, Autry Museum of the American West
- Braun Research Library, Autry Museum of the American West
- California Historical Society
- California State University, Northridge, Delmar T. Oviatt Library, Special Collections and Archives
- California State University, Northridge, Geography Map Library
- Californiana - County of Los Angeles Public Library
- Center for Oral and Public History/California State University, Fullerton
- Curating Los Angeles
- David Boulé - California and the Orange Collection
- Dominguez Rancho Adobe Museum
- Esotouric
- Glendale Public Library, Special Collections
- Go For Broke National Education Center
- Huntington Library, Art Collections and Botanical Gardens
- LA84 Foundation - Sports Library
- Little Tokyo Historical Society
- Los Angeles County Arboretum & Botanic Garden
- Los Angeles County Metropolitan Transportation Authority Library & Archive
- Los Angeles Public Library, Photograph Collections
- Mojave Desert Archives
- Pasadena Museum of History
- Pepperdine University Special Collections and University Archives
- San Gabriel Mission Playhouse
- Santa Monica Mountains National Recreation Area
- Santa Monica Public Library
- Southern California Genealogical Society
- Studio for Southern California History
- The Drucker Institute
- The Wende Museum
- Tom & Ethel Bradley Center, MCCAMC, CSU Northridge
- University of California, Irvine Libraries Special Collections and Archives
- University of California, Los Angeles, Film and Television Archive
- University of California, Los Angeles, William Andrews Clark Memorial Library
- University of California, Santa Barbara, University Art Museum, Architecture and Design Collection
- University of Southern California, Doheny Memorial Library, Regional History Collection
- URBAN NOIR/LA
- USC DML Rare Books and Manuscripts
- Visual Communications
- W.K. Kellogg Arabian Horse Library
- Whittier College
- Writers Guild Foundation, Shavelson-Webb Library and Archives
Blogs
- American Jewish University, Ostrow Library & University Archives
- Arcadia Public Library, Arcadia History Collection
- Autry Library, Autry Museum of the American West
- Boyle Heights Historical Society
- Braun Research Library, Autry Museum of the American West
- C. G. Jung Institute of Los Angeles, Max and Lore Zeller Library
- California Historical Society
- California State University, Dominguez Hills. Archives and Special Collections
- California State University, Northridge, Delmar T. Oviatt Library, Special Collections and Archives
- Claremont Colleges, Honnold/Mudd Library, Special Collections
- Curating Los Angeles
- Esotouric
- Getty Research Institute, Research Library
- Glendale Public Library, Special Collections
- Huntington Library, Art Collections and Botanical Gardens
- LA84 Foundation - Sports Library
- Los Angeles City Archives
- Los Angeles County Metropolitan Transportation Authority Library & Archive
- Los Angeles Harbor Department Historical Archives
- Los Angeles Maritime Museum Research Library
- Los Angeles Public Library, Photograph Collections
- Loyola Marymont University, Dept. of Archives & Special Collections, William H. Hannon Library
- Mojave Desert Archives
- Museum of the San Fernando Valley
- Pepperdine University Special Collections and University Archives
- Santa Monica Land & Water Company Archives
- Southern California Genealogical Society
- The Wende Museum
- UCLA Ethnomusicology Archive
- UCLA Library Special Collections
- University of California, Los Angeles, William Andrews Clark Memorial Library
- University of California, Santa Barbara, University Art Museum, Architecture and Design Collection
- University of Southern California, Doheny Memorial Library, Regional History Collection
- Visual Communications
- Western Costume Company
- Whittier College