Gary Green's map of fiction in Surrey. A great example of how to use Google Maps. The tool also allows him to write about each title that he's put into the map.
Your Library - Edinburgh City Council has a a great example of a library breaking out and getting into the wider community. This is a map that details literature based within the city. There are more than 100 books on the map which covers the whole city, from Edinburgh Airport to Portobello Police Station, and Muirhouse to James Gillespie's High School