The Smithsonian National Air and Space Museum has scanned and posted online more than half of the museum's 1,300 posters related to flight. The gorgeous artwork in the Fly Now! collection spans from 1827 to today and covers all manner of aerospace, from ballooning to space travel, airline ads to air show broadsides. The Museum's AirSpace blog has several interesting behind-the-scenes photos of the process of examining, scanning, cataloging, and storing the posters. Above left, Flughafen Frankfurt poster celebrating acrobatic aeronaut K. Paulus. Above right, 1919 advertisement for Compagnie Aerienne Francaise by artist Jean Carlu.