(Bruce Lewis) Do you have one of those mobile phones with a built-in GPS and camera?  It's probably not only recording when you took a picture, but where.  If you upload such a picture, OurDoings will show a map courtesy of Google Maps.  If you don't have that kind of cameraphone, you can enter a latitude and longitude on the same page where you edit a photo's caption.
This feature has been in for a couple of weeks.  One thing people have noticed is that it's easy to forget to turn off the geocoding option in your phone when you're at home.  If you upload a photo with GPS information for a private location, then edit the latitude/longitude, blanking them out, you'll get a button that says "Always Hide This Location".  Click that button, and photos uploaded subsequently with approximately that location will have their GPS information erased.