I'm very eager to see some of the efforts from MSR reach the mass market soon...
Researchers at Microsoft have been working on a wide range of technologies that will help people write their personal histories through digital photography. To tell any history, it's best to start at the beginning, and move forward.
Update 10/13 - Marshall, a friend of mine, commented on an interesting article in Wired related to the MS link above (look at the comments for the article link). The last part of the article contains a list of 6 ways to catalog your photos. One way blew me away... check out their example of data mining:
Personal information stored in a your calendar, address book, and email app can provide clues for photo searches. For instance, software could look for the word "birthday" in your calendar and return shots taken on those dates.
Oh.... notice the article was written by the guy who wrote The Cluetrain Manifesto, one of my favorites.