Eruptions of Mount St. Helens Online version of a United States Geological Survey brochure on the history and geology of eruptions at Mount St. Helens. http://pubs.usgs.gov/gip/msh// - More
FEMA For Kids: Volcanoes Explains what a volcano is and identifies active volcanoes in the United States. http://www.fema.gov/kids/volcano.htm - More
How Volcanoes Work This website is a comprehensive educational resource that describes the science behind volcanoes and volcanic processes. http://www.geology.sdsu.edu/how_volcanoes_work/ - More
The Electronic Volcano A pioneer site started by Professor Dick Stoiber at Dartmouth College providing information on active volcanoes. http://www.dartmouth.edu/~volcano/ - More
USGS Cascades Volcano Observatory (CVO) Information about and photos of the Cascades volcanoes, Mount Saint Helens updates, and volcano monitoring and hazards information. http://vulcan.wr.usgs.gov/ - More
Volcano World Presents lots of information on currently active volcanoes in the world. http://volcano.und.nodak.edu/ - More
Volcanoes This interactive exhibit, part of the Exhibits Collection of The Annenberg/CPB Projects, explores why volcanic eruptions occur. http://www.learner.org/exhibits/volcanoes/ - More
Volcanoes An online volcanology textbook by Robert I. Tilling of the United States Geological Survey. http://pubs.usgs.gov/gip/volc/ - More