The other day someone told me how much more they preferred the airphotos from one IM engine compared with another. I thought, "what a lot of work it must be to compare them for all of the different sites you are studying." Then I found Flash Earth.
Flash Earth has created a site that lets you zoom in and flip between the photos provided by Google, Microsoft, Ask, Yahoo! and even (at a regional scale) NASA and OpenLayer.
For instance, the Dag Hammerskjold School in East Brunswick is shown in Microsoft and ask.com as under construction, shown before construction in Google, and shown before (but with a different photo) at Yahoo. Another example is Yankee Stadium, in the Bronx. Here you can clearly see that Microsoft and Ask have newer imagery (after construction began on the new Stadium) but that Google and Yahoo both have photos taken while a game was in progress - which has to be a fairly deliberate decision.
Compare!
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