US Geological Survey
Usgs: Natural Hazards Programs: Lessons Learned for Reducing Risk [Pdf]
This site provides links to articles about natural disasters such as volcanoes, earthquakes, landslides, floods, etc.
Cosmo Learning
Cosmo Learning: Engineering Geology
A collection of video lectures from a course introducing students to the basics of engineering geology. Webpage includes forty lectures from a professor at the National Programme on Technology Enhanced Learning. Lectures vary in length...