This book lists federal government World Wide Web sites for K-12 students, parents, and educators. The first section of the book contains descriptions, including appropriate grade level, of Web sites for students, organized in chapters that cover: the natural world; the environment; health and safety; the United States and the world; community and people; words, reading, and the arts; work, money, and the mail; transportation, energy, and technology; math, science, and space; education; and research resources (i.e., Web sites that are not designed specifically for students but include information on topics that correspond to school work). The second section contains Web sites specifically for parents, including publications accessible online that will help parents to help their children academically, as well as sites designed to keep children safe and to inform parents about drug abuse and online dangers for children. The third section contains Web sites for teachers, organized in chapters that cover: general topics; environment, conservation, and wildlife; health, safety, and medicine; science and math; social studies; and transportation and technology. The appendices include guidelines for finding government information online and a list of agencies with student, parent, or teacher Web sites. (Includes an index.) (MES)