| Agency | URL | Description | |
| Dartmouth Flood Observatory | www.dartmouth.edu/~floods#http://www.dartmouth.edu/~floods# | Current flooding worldwide | |
| NASA Earth Observatory | www.earthobservatory.nasa.gov#http://www.earthobservatory.nasa.gov# | Descriptive information and imagery portal for NASA sensors. Also derived products (e.g. rainfall, temperature, etc.). | |
| U.S. Geological Survey - Imagery Quick Viewer | http://iq.usgs.gov#http://iq.usgs.gov# | Online mapping, including areas-of-impact for some natural hazards | |