This book, designed as both a teaching and a learning tool, provides guidelines on how to use Internet tools (World Wide Web, e-mail, Gopher, and others) to find K-12 projects, reference sources, school assignments, fun activities, current information, pen-pals worldwide, team projects with other students around the world, special-education resources, story hour sites, and more. In addition, the book explains the Internet vocabulary; offers a variety of instructional strategies; provides information on finding updated Internet resources; and assists with administrative and policy issues. The book is divided into three modules. Module 1 gives the basic information needed for starting to use and explore the Internet. The exercises are intended to provide practice in using each tool and can be customized to meet training needs. Module 2 offers ideas about how to teach about the Internet and ways to use it in classrooms and libraries. This module provides annotated lists of useful projects and discusses advantages and disadvantages of Internet tools. Module 3 presents information and resources on the planning for Internet implementation, including the special roles of teachers and librarians. Appendices include a table comparing Gopher and the World Wide Web, and copies of acceptable use policies. This second edition contains updated sources and references, expanded information about Acceptable Use Policies and blocking software, and a new section on the differences among Web searching tools and how to use them. (AEF)