The method recently worked in an experiment that analyzed Chicago crime, but privacy questions abound.
A wild experiment in 3D data visualization.
When it comes to social media at the municipal level, not everyone is a Cory Booker.
A fun new map shows that America rules supreme when it comes to Twitter profanity.
Austin, St. Louis ... the Great Wall of China?
An EU-funded project is building platforms to detect patterns in how people use urban spaces.
Visualizing the various digital divides in the city.
And other glimpses of the mood of the city.
The San Francisco police are taking their anti-bike-theft efforts to social media.
A new system tracks food illness by parsing mountains of geo-tagged data.
It's a pretty impressive snapshot of the transportation networks of large stretches of the globe.
The results of a study of 82 million tweets from 1,300 counties.
A few social media norms the department should be prepared to address.
This map of Twitter data will show you.
Where people Tweet in San Francisco, New York City, and Istanbul.
In Instagram photos.
New research suggests that location plays a smaller role now in who we talk to and what we talk about.
Clear and distressing pockets of hate speech.