Google Books, Google Maps: hist-mash

Google is digitizing books from University of Michigan. UMich is a founding member of the “Making of America” project, a digital library of 19th century materials. What could make this partnership even better? Google Maps.
Here’s an example: take a classic work like “Illustrated New York” published in 1888. Search it for things that look like street addresses, then map those to a street map of New York City. Voila! That’s exactly what they have done at:
http://books.google.com/books?vid=OCLC57700799
Check it out.
(and if you find any other books at Google where this has been done, please let me know.)