Since around 2011 Google has been flying its own missions to collect 6 inch (15 cm) pixel imagery across the entire United States... goal is to have nationwide imagery that is no older than three years old everywhere, and to have imagery that is no older than one year in the largest metropolitan regions in the USA
Eagleview and Nearmap are other companies doing the same thing.
https://www.appgeo.com/maps-pointers/google-now-selling-aeri...
Since around 2011 Google has been flying its own missions to collect 6 inch (15 cm) pixel imagery across the entire United States... goal is to have nationwide imagery that is no older than three years old everywhere, and to have imagery that is no older than one year in the largest metropolitan regions in the USA
Eagleview and Nearmap are other companies doing the same thing.