prostheticknowledge:

Data Visualization: World travel and communications recorded on Twitter

By Eric Fischer

Green is physical movement from place to place; purple is @replies from someone in one location to someone in another; combining to white where there is both.

Reported trips to Null Island excluded; all other geotags trusted. Endpoints of trips are real data; routes in between are fabricated.

Data from the Twitter streaming API through September 1, 2011. Continent shapes from Natural Earth.

See larger versions of the above image here