GypsyMaps Rox My Sox

GypsyMaps is a Google Maps mash-up that overlays the MTA subway and bus maps over the city. What's really cool is if you ask for directions, it'll tell you which lines to take, figure out how far you have to walk and even how long your commute will be. And it's pretty accurate, too. It says my old commute was about 20 minutes, door to door, which was about right.