The Classroom Resources section of the National Science Foundation's website has a collection of materials for school teachers, students, and parents of students. The lessons are suitable for grades K-12, higher education, and lifelong learners, and they are drawn predominantly from the National Science Digital Library. Visitors can choose from the range of research topics by clicking on the links in the middle of the homepage. The available topics range from "Astronomy & Space" to "Chemistry & Materials" to "Nanoscience". Visitors interested in the issue of educating girls in science and math, or the history of women in the sciences would do well to take a look at the "Computing" and "Physics" topics for links to such information. In all of the twelve research topics, there is a link at the end of the list of resources to an overview of the research that the National Science Foundation is doing in the selected area. For instance, in the "Earth & Environment Research Overview" link, the major questions that are being studied by the NSF are posed in the form of clickable links, such as "How can organisms live without sunlight?" or "What part do we play in the Earth's changing climate?". [KMG]