San Francisco Bay Area Recorder's Office Records Online
In California, recorder's offices are prohibited from putting copies of recorded documents online.
But many have put searchable indexes to the documents and summaries of the documents on their websites.
In the San Francisco Bay Area they include:
Alameda County Recorder (select the Official Public Records option)
Contra Costa County Recorder (select the Search Recorded Documents option)
San Francisco County Assessor-Recorder (select the Search Recorded Documents option)
Santa Clara County Clerk-Recorder (select the Official Documents link on the left)