A list of Persons Who Died as a Result of the Great Earthquake and Fire in San Francisco on April 18, 1906 by Museum of the City of San Francsico
Early Arrivals Record Search - NARA 1882-1955 Hundreds of thousands of people passed through the immigration stations in San Francisco and Honolulu between 1882 and 1955. Nearly 250,000 of them are the subject of federal reports and records , including immigration investigation case files
Marriage Death Records on the Pacific Coast-1872 
San Francisco County, CA Genealogy Forum read and post messages about your ancestors for this county
San Francisco County, CA Genweb Project a collection of online resources for genealogy researchers
San Francisco County Message Board read and post messages with other genealogy researchers of this county
San Francisco Co; Ancestors' Birth Notices
San Francisco Co; Great Earthquake and Fire  a list of persons who died- 1906
San Francisco Co; Ancestor's Obituaries and Death Notices
San Francisco History great website with a wealth of links to databases
The Tombstone Transcription Project - cemeteries for San Francisco Co. CA
US GenWeb Archives for San Francisco County cemeteries, newspapers, wills, military rosters etc recorded online

Additional Resources

California Newspaper Search enter your California ancestor's name to instantly search the world's largest newspaper archive; over 12 million newspaper pages
California Birth Records
California Marriage Records
California Divorce Records
California Death Records