"Places

In addition to the “who,” Apple has refined the “where” of your pictures, with the Places feature. If you have a GPS-enabled camera, such as an iPhone 3G () or Nikon’s Coolpix P6000 (or even the original iPhone (), with its WiFi triangulation location feature), when you import photos into iPhoto, their location data will be included, and stored in the program’s Places database. If you don’t have some way to add GPS data to your pictures before you import them—I use Houdah Software’s HoudaGeo and my Garmin GPS to tag photos via GPX track logs—you can also add your own places to individual photos or whole groups of them via the My Places dialog box, which uses Google Maps to search and pinpoint locations. "
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