I make an animated map of the globe.
A path is traced from the point of departure to destination.
The position of the points of departure and arrival are determined by the geographical coordinates (latitude and longitude). an overview http://www.youtube.com/watch?v=HT63mANjhgk. You find the file blender; odt file explaining the calculations; ods file calculates all changes for the new path (in Table 1, you enter the coordinates of city .in Table 2, you enter the line corresponding to point starting and the line corresponding to the point of arrival). Table 2 gives all the changes has to do file blender.
maps used for the videos can be posted (wikipedia creative commons)