One of the city-state's biggest websites allows users to upload photos and videos of 'bad' behavior.
Presuming your friends use Foursquare, of course.
Dozens of cities will have the chance to design their own municipally focused microcosm of the web.
A new German website alerts members about the location and content of leftover sustenance.
In a city where humbleness is a virtue, Silicon Prairie News helps entrepreneurs shout from the rooftops.
A new website enables residents to identify problems in Beijing's pedestrian and bicycle infrastructure.
That's the number of measures the world's 58 biggest cities have passed to fight climate change.
Local government sites increasingly embrace social networking, but is it working?
One Washington builder asked neighbors what kind of store should fill an empty building. Is this the future of urban development?
Code for America provides fellows to cities to tackle local problems