Flickr

Flickr/charliekwalker

How Flickr Predicted Hurricane Sandy's Landfall

An amazing comparison of social media meta-data, in two charts.

This Is the World on Flickr

A map from the Oxford Internet Institute reveals the geographical distribution of billions of photos uploaded to the popular image-sharing site.

Luminous Cities

The Most Sophisticated Flickr Maps We've Ever Seen

Telling encoded stories of politics, natural disasters and social movements.

Phototrails

The Visual Signature of Your City

In Instagram photos.

Alexander Dunkel

What Flickr Can Teach Us About the Way We Photograph Cities

Maps of data offer a precise understanding of the where we shoot different landmarks.