As I am sure you all know, more than 70% of the Earth’s surface is water. When you use Google Earth or maps, there is no detail. It’s a big uniform blue mass. For anyone who has been on the water, it’s anything but that. In fact the navigating sea is more complicated than figuring out a road system. You are kind of on your own.
 
NOAA is government organization who create charts (maps to the rest of us) of the sea showing depths, obstacles, navigational aids, etc. Some guy in France has mashed up NOAA’s charts with Google maps to create a detailed map of the sea.
 
http://demo.geogarage.com/noaa/
 
My personal productivity just took a serious nosedive.
 
Adam Turinas