Mapping genius Eric Fischer has created these great comparisons of geotagged content from Flickr and Twitter. The red dots are locations of Flickr photographs, the blue dots are locations of tweets and the white dots are locations that have been posted to both. From these maps, you can see the different areas where these two networks have been used, giving an idea of how they’ve spread across the world. There is a map of North America (above) and Europe (below) as well as close-ups of cities in many different countries.

Eric Fischer