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Remote Sensing/GIS and Human Health: A Partial Bibliography contains references for further research into health and GIS.

FAA GIS resources and articles.

You have to register but it's free data.

Interested in GIS and agriculture? Have the urge to shower yourself in government-made powerpoint presentation? Here is a start.

The have free stuff and not free stuff. All and all, lots of free data.

News of the photogrammetry and remote sensing.