One of the most frequent questions I see in the Google Maps Help forum is when will Google update the satellite or street views picture of my house or office. Well, now Google can alert you when there has been update, so that you don't have to manually check every couple of hours.
Brian B. from the Google Maps team announced this in a Google Maps Help thread and a Google Blog post. How does it work?
(1) Go to followyourworld.appspot.com
(2) Login to your Google account if you haven't.
(3) Search for an address or latitude/longitude point.
(4) Align the map to the center, between the cross hairs.
(5) Then hit "Select Point"
(6) Feel free to override the name (if you want)
(7) Hit "Submit"
Next time Google Maps does an imagery update of that area, you will get an email to your Google account.
Here is a picture of the page:
Note, you can always remove these alerts on the dashboard section and for more information, make sure to read the FAQs.
Forum discussion at Google Maps Help.