Geology.com has put together an excellent overview of some of these issues related to home owners insurance and geologic hazards. It is a great resource for friends, relatives and associates looking to buy homes. Hopefully they will be able to recognize if there might be a potential risk, and seek out the services of a geologist or engineer before they put their investment at risk.
The National Geodetic Data Center (NGDC) of NOAA has an online collection of photos of various geologic hazards. Many of the photos are from older sets of 35mm slides that have been digitized. They are free to use provided you credit the photographer and the NGDC as the source. The would be really useful for educators and for powerpoint presentations. The only drawback is that they are in TIF format and some of them could use some retouching. (Photo by University of Colorado, made available by NOAA/NGDC)