Disaster Deltas
In February of 2010 I spent 24 hours coding at the Stanford Dance Marathon Hack-A-Thon, where students program for non-profits. The project my group created is called Disaster Deltas, and was inspired by a request by representatives from InSTEDD to create a tool that will allow the before-and-after satellite images of regions recently hit by disaster to be examined. We used images from the Haiti earthquake, but designed the tool to be general enough to be used by any GeoTIFF satellite images.
The idea is that given a before and after image, regions that have changed (such as collapsed buildings or migrations of people) may be quickly identified, and resources may be sent there.
The project is open source, and we encourage continued development of it!
Source is hosted on Google Code.
Project website and additional samples at disasterdeltas.org.