Many web databases offer satellite/aerial imagery from a number of sources. Because various sources provide imagery taken at different times, the more sources the better.
Here’s another source, Maps24.
Maps24.com offers aerial imagery of:
+ Africa
+ Australia
+ Brazil
+ Europe
+ Middle East
+ North America
Maps24 also offers:
+ Numerous Personalization Options
+ Maps
+ Hotel Lookup
+ 3D Map Views
+ Find Points of Interest
+ Send Routes and Info via Email
