“Where people post geotagged photos to Flickr from and geotagged tweets to Twitter from.” via Eric Fischer
Red dots are locations of Flickr pictures. Blue dots are locations of Twitter tweets. White dots are locations that have been posted to both.
Via Lauren Moss
voir aussi la page Flickr d'Eric Fischer, l'auteur de ces images spectaculaires : http://www.flickr.com/photos/walkingsf/