San Francisco has a rich and fascinating history, and the bay is of course at the heart of it. The gold rush in 1849 brought hundreds of ships to the bay and transformed San Francisco and the entire area.
Historical Maps of San Francisco This wonderful tool from David Rumsey of Cartography Associates enables you to view and compare various historical maps of San Francisco, which have been aligned to a consistent coordinate system so they correlate.
History of the S.S. Vallejo Great site with lots of information about the fascinating history of the ferryboat Vallejo, which formed the nucleus of the houseboat community in Sausalito. Once the home of Alan Watts and artist Jean Varda.