US Geological Survey
Alaska Volcano Observatory: Current Volcanic Activity in Alaska
Current activity among Alaska's volcanoes is reported at this detailed site. Kamchatka Peninsula's volcanoes also receive attention. Location of active and dormant volcanoes are plotted, images of activity are regularly updated via...
PBS
Pbs Nova Online: Lost at Sea the Search for Longitude
"The quest for a reliable method to find your way at sea was one of the thorniest problems of the 1700s." Find out about the search for longitude at this NOVA site. Includes interactive Shockwave game, learning activities and more.
Smithsonian Institution
National Museum of the American Indian: Indigenous Geography
Indigenous Geography helps you develop key understandings on nine different dimensions as they relate to six Native communities located in the Western Hemisphere. Learn about the creation stories, place boundaries and landmarks, calendar...