California Missions Interactive
- Information on California's twenty-one Spanish missions.
- http://www.rawbw.com/~cmi/

The Significance of Blessed Junípero Serra
- An Article on Blessed Junipero Serra and his significance to Western America.
- http://www.catholic.net/rcc/Periodicals/Faith/00MarApr/Sketch.html

Old Mission, Santa Barbara
- Official website of Mission Santa Barbara(founded 1786) containing pages on the historic mission, tours, and the active Catholic parish meeting there.
- http://www.sbmission.org/

Earlene's Roots - Missions of California
- A short history on each of the California Missions.
- http://www.earlenesroots.com/missions.html

California Missions Foundation
- Dedicated to preserve, protect and maintain California's missions. Includes basic data on each mission, ways to contribute, issues and news.
- http://www.missionsofcalifornia.org/

The Spanish Missions of California
- Database of knowledge compiled by ThinkQuest
- http://library.thinkquest.org/3615/

Old Mission Santa Inés
- Established in 1804, this mission in Solvang has an active parish, with Masses in English and Spanish. Official website provides history, photographs, tour information, church news and service schedule.
- http://missionsantaines.org/

The California Missions
- Includes over 500 color photos, taken at all 21 missions.
- http://www.thecaliforniamissions.com/

California Missions: A Virtual Tour
- Provides both brief and in-depth histories of each mission in California, along with historic photos and authentic mission music.
- http://www.californiamissions.com/

Ranch and Mission Days in Alta California
- Guadalupe Vallejo describes life in Alta California before the Americans came.
- http://www.sfmuseum.org/hist2/rancho.html

Founding of the Mission Dolores - 1776
- Information on the founding of the Mission Dolores and the first church built in San Francisco.
- http://www.sfmuseum.org/hist5/misdolor.html

Mission Art Press
- Original photography and unique historical graphics relating to the original 21 California missions.
- http://www.missionart.com

California Mission Studies Association
- For the study and preservation of the California missions, presidios, pueblos, and ranchos.
- http://www.ca-missions.org/