On a much lighter note, anyone who's lived in, or spent appreciable time in, New York City, is familiar with the vagaries of alternate side of the street parking rules. However, it's damned near impossible to find out about these regulations online.
Before its merger with CityGuide, MSN's Sidewalk used to have a page of Parking Tips (now dead). Now, the sites are combined and the forwarding page is useless.
With much effort, I found the parking calendar on the City of New York's rather poorly-organized website.
Seems to me there is a crying need for a simple map of Manhattan with clickable links indicating the appropriate parking rules for whatever neighborhood you've selected. There are 4 million or more cars in Manhattan on a typical day-- ain't that a big enough market for someone to go after?
When Auto-Tune Strikes