- Handy Block Books
1909-10 editions of the San Francisco Handy Block Books, illustrating block and lot lines and property owners across the city
- Here Today: SF's Architectural Heritage
Created by the Junior League of SF, the 1968 historic building survey is a seminal work that still informs the preservation community. (Free to digitally borrow with login)
- SF Department of Public Works Reports
Annual Reports from the San Francisco Department of Public Works from SF Public Library Collection, hosted by the Internet Archive.
- Splendid Survivors
Created by SF Heritage, this is a 1979 historic building survey of Downtown and South of Market Buildings. (Free to digitally borrow with login)
SFMemory.org is a project of David Gallagher to collect useful San Francisco and Bay Area history resources for researchers and the general public.