How often does Google Maps update satellite images?

Answer

Google updates Google Maps and Google Earth images whenever new imagery becomes available, and there is no set schedule. Most images are one to three years old.

For people who are interested in knowing when maps of certain locations are updated, Google offers an alerting service at followyourworld.appspot.com. Alerts are emailed whenever the satellite or aerial imagery in the user's area of interest is updated. To use this service, users need a Google account.

Google also welcomes input from users. They can report a problem on a map and, with the Google Map Maker, even add or change map information.

Reference:
Q&A Related to "How often does Google Maps update satellite..."
I agree that they don't upgrade often. I noticed that the Egyptian images showing the pyramids are really old. Those things are thousands of years old. Why don't they update those
http://wiki.answers.com/Q/How+often+google+maps+up...
Google does not have a timetable on when they update their
http://www.chacha.com/question/how-often-does-goog...
Google purchases the images from many different sources. Most of the images are purchased second hand - basically the images are not taken for the sole purpose of supplying them to
http://answers.yahoo.com/question/index?qid=200902...
Google Earth has never let on when they will update an area. Ask us more, we're here 24/7!
http://www.kgbanswers.com/how-often-does-google-ea...
1 Additional Answer
Ask.com Answer for: how often does google maps update satellite images
How Often Does Google Maps Update Satellite Images?
Google Maps is a trusted source for location information including directions, traffic and satellite imagery. The relatively high resolution images have even been used to spur new archeological research efforts, according the National Geographic.... More »
Difficulty: Easy
Source: www.ehow.com
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