OnNYTurf Subway Map
The most frustrating aspect of most New York City Subway Maps is that they only show the subway lines, neglecting all but major streets. You might know where get off but then you have no idea how to get to your final destination. Alleviating the problem, OnNYTurf simply overlays the subway map on a google-style map (click on image for enlarged view). Google also recently (finally) added Subway stops to their maps so using either you can plot your trip to see what subway stops are closest to your final destination, but only OnNYTurf's overlays the actual lines.
via swismiss.
