Shanghai Subway Map - Shanghai is a city that does not have street mapping from Google Maps as of yet. This subway map however will help you if you are matching recognizable Shanghai landmarks with the subway system there. If you know the city well it also acts as an interesting way to explore the city. Wikimapia's Shanghai descriptions might help as well.
More Google Maps for China:
Recent Post: Google Maps Mania in China - A roundup of all known Google Maps mashups and tools for China
Recent Post: Hong Kong Google Maps mashups