Oh this is so damn cool. If you use Flickr, you can at latitude and longitude tags to your photos and the guys at Geobloggers will include it in a google map. Check it out. I just put one of my photos up, and now I’m gonna look through my photos and try and get some local landmarks / etc. and add them too.
You can search by lat / lon but I haven’t tried that yet. This is so cool.