This site from the U.S. Geological Survey can function as a lesson plan supplement or resource for amateur volcano watchers around the world. While the homepage features a map highlighting the current statuses of America's volcanoes (green for normal, and yellow, orange, and red for increasing alert levels), the site itself boasts a number of other educational resources. For instance, readers may select Learn for access to interesting material, both for educators and for the general public. In addition, Publications links to Volcano Fact Sheets, Volcano Assessments, and other interesting Volcano-related information. However, for many readers the Images tab, with its photographs of eruptions and its web cams of several U.S. volcanoes will constitute the dramatic heart of the site.