Provided by the Department of Geology and Geophysics at the University of Hawaii, this educational Website covers topics in and beyond the fields of geology and geophysics. At the site, users may send (electronic) questions to 'real live scientists' regarding: Volcanoes and Igneous Rocks; Geochemistry, the Environment, and Pollution; Geophysics and General Geology; Earthquakes and Seismology; Hydrology and Water Quality; Natural Hazards; Minerals, Gems, Ores and Crystals; and Sediments and Sedimentary Rocks. Answers are thoughtful and content-rich, although many are specific to the Hawaiian Islands (as expected). To submit a question, users must select from a related topic area and then complete the online submission form. First-time users should begin by browsing previous questions and FAQs, however. This is a wonderful resource for students wishing to interact with established scientists, or for educators seeking clear and interesting explanations of natural phenomena.