GeoTagging Flickr and Aperture
James Kellerman
I love the geotagging feature in flickr, but I haven't really gotten round to using it yet. The flickr export plugin for aperture looks likely to change that. It allows you to export directly to flickr from Aperture and will grab the current coordinates you have open in google earth at the click of a button.
REad more at the excellent Inside Aperture blog