http://volcano.und.nodak.edu/vw.html
Keeping an eye on volcanic activity all over the world, this site brings you late-breaking news about eruptions and basic facts about volcanoes. But why limit your volcano-watching to Earth? There's even a place to find out about 'major sites of volcanism' on Mars. Friendly, colorful graphics guide you to areas like Volcano Lessons, which recently included Mount St. Helens lessons for grades 5 to 12, and Volcano Mall. Curious visitors can participate in 'Ask a Volcanologist,' an interactive Q&A. Remote sensing images, other kinds of data, and interactive experiments are presented for those interested in teaching or learning about volcanoes and related sciences. The site has links from its data with principles of geology, and provides algorithms with which users can analyze images available.