geo-tagging

Geo-tagging is the "process of adding geographical identification metadata to various media" according to Wikipedia. It is the linking of a photograph, video etc to the location of which it was taken or recorded, and allows the viewer to follow the path the photographer has taken.

Flickr allows it's users to geo-tag their images on the site, and I have recently done so with my images. You can view my Flickr images here, and find my map here. As my Flickr account is pretty new you can see that the images I have uploaded aren't from a particularly wide range of places, but I guess that'll gradually improve when I find the money to travel a bit.