Images: A look at geotagging technology

Flickr launched a module in 2006 that lets people geotag their photos by dragging them onto maps. Photos tagged with location data before upload also can be shown on maps if a Flickr member chooses to enable the feature. The map can be set up to show photos from a particular time, uploaded by a particular Flickr member or tagged with particular text labels--"cable car" in this case.

Photo by Flickr