Visiting an airport can be a stressful endeavor, so it's always nice to have a few distractions. There's a rather fabulous one at the San Francisco International Airport (SFO), currently, and it comes in the form of historic maps. Culled from the David Rumsey Map Collection, this in situ exhibit contains dozens of maps that document the city's development. On this site, visitors can view maps of...

By no means a new site, but frequently updated, this is one to bookmark if you have any interest in the history of San Francisco. Their online exhibits feature articles, images, and a cornucopia of archival materials relating to the 1849 California gold rush, the great earthquake and fire of 1906, the 1989 earthquake, the construction of the Golden Gate and Bay Bridges, San Francisco World War II...