I’ve written about Eric Fischer’s work before (Digital Cartography, Digital Contrails). His work takes massive amounts of data and plots them geo-spatially to create beautiful maps. His latest piece shows Twitter and Flickr around the San Francisco Bay.
Red dots are locations of Flickr pictures. Blue dots are locations of Twitter tweets. White dots are locations that have been posted to both.
Interesting to see how much of the activity, especially Twitter, are located along major streets. Looks like a lot of Tweets are being sent from behind the wheel.