Here's another great map resource that a friend tipped me off to. It predates the "noir" era by decades-to-centuries, but I thought it would be appreciated here.
Anybody who searches historic maps on the internet is probably familiar with the
Dave Rumsey Collection. The only problem was that the collection's website had a mediocre user interface (not as horrible as
Hypercities, but still).
Well, now the Dave Rumsey Collection has
a new site that has the entire map collection referenced to Google Earth. Although there is only one Southern California map (William Hammond Hall, 1880), it's definitely worth a look.
And if you haven't done so already, do yourself a favor and check out Hypercities. Los Angeles Past posted
a very useful how-to on navigating that site. It still gives me fits, and I'm the one who tipped-off Scott about it in the first place!