http://www.looksgood.de/log/2011/10/mapmap-vauxhall-mashup-mental-maps-and-openstreetmap/ This software allows users to draw a mental map of an area and squish the real map to their drawing. There's no demo available but there is code on GitHub.
http://www.nytimes.com/2011/07/25/nyregion/deep-below-park-avenue-a-200-ton-drill-at-rest.html A massive drill bit used to create NYC subway tunnels will be left underground and encased in concrete.
http://www.nytimes.com/2011/01/12/nyregion/12taxi.html?_r=1&em Turns out 5:00 is a bad time to find taxis in New York for some interesting reasons.
http://thelaunchbox.blogspot.com/2011/01/view-down-below-january-23-2011.html See the construction of the Second Avenue Subway.