GMiF is an third party add-on of Flickr. It will embed a Google Maps in Flickr photo page and display where the photo was taken on the maps, if the photo is geotagged.
GMiF also makes geotagging very easy. You can save geotags, add description or comment with only one click. Furthermore, GMiF is a geotagged photo viewer. You can browse all your geotagged photos and show nearby photos geotagged by others.