The June 2008 edition of Adobe EDGE has a great article on geocoding. Geocoding is getting popular with the release of Yahoo Maps, Mapquest, and Google Maps APIs. Suddenly any user can apply for one of those keys and start mapping locations on their site or even using those APIs to get geo location data to then use within their own mapping engine. That is where this example comes in. Adobe has written up a great article on getting started with using the Yahoo Maps API to get the longitude and latitude of a location, then converting that to 3D coordinates to place on a globe built in Papervision. The example is simple, but feels good and responsive.
A couple more Flash Geocoding Examples and Demos