flightsWired has a link to a neat interactive visualization of flight traffic over the US for a 24-hour period, created by Aaron Koblin with data from FlightView and help from Wired Magazine.

Two million flights pass through New York’s airspace each year. Artist Aaron Koblin used images from his piece, Flight Patterns, to create a Google map representing air traffic across the United States over a 24-hour period. The map displays the flight paths for more than 205,000 aircraft the FAA tracked on August 12, 2008.

via Interact: Watch 24 Brilliant Hours of U.S. Flights.