MIPT Terrorism Knowledge Base
has both an interactive and a static map showing terrorism incidents. The static map comes in pdf format
and shows 2005 terrorism incidents. The interactive map is more interesting
. Users can zoom in to an area of the world or a country and display terrorism activity along with population densities, transportation densities, satellite imagery, location of power plants, factories and mineral resources. Clicking on a terrorist incident point brings up a listing of incidents. The inclusion of incidents seems to go back to 1968 and is based on the RAND Incident Database. No word on data sources for any of the other data layers.
By way of ResourceShelf