Find useful, information and more links
regarding Streetcars, Historic Preservation,
Mass Transit, etc at these sites:

Market Street Railway

San Francisco Municipal Railway (Muni)

The Cable Car Museum

SF Museum and Historical Society

Western Railway Museum, Rio Vista

Railway Preservation Resources

Seashore Trolley Museum, Kennebunkport

San Francisco Architectural Heritage

Historic Streetcar Service - GGNRA/EPA

Muni Metro, from Wikipedia

The F-Market Line, from Wikipedia