- Historic Photos of Southern Orange County - Old photos, post cards, and vintage ads of Laguna Beach, Dana Point, San Clemente, and San Juan Capistrano. A Short History of Laguna Beach, and post cards of Three Arch Bay.
- History of Orange County, California - By Samuel Armour. Los Angeles: Historic Record Company, 1921. E-text by Google Books. Includes biographical sketches of leading men and women of the county.
- Internet Archive: A Rambling Sketch In and About Laguna and Arch Beaches - Published by D. A. Hufford, 1922. A short promotional work commissioned by a local resort describes the area as a paradise. Includes a photo of Laguna Beach and of the Mission at San Juan Capistrano.
- O.C. History Roundup - Information and photos for people interested in the history of Orange County.
- Orange County Historical Commission - County appointed citizen advisory group whose role is to advise the Board of Supervisors’ and County agencies. Meetings, agenda, programs, and publications.
- Orange County Historical Society - Dedicated to the discovery, preservation, and dissemination of the history of Orange County. Announcements, history time line, and books for sale.
- Orange County, CA History Page - A brief survey with links and pictures.
- Orange County Jewish Historical Society - Mission and volunteer application form. Includes a time line and annotated photo gallery.
- Orange County Pioneer Council - Membership open to families settling in Orange County prior to 1926. Oral history bibliography, events, and board of directors.
