Educators, librarians, parents and school board members are looking for ways to utilize the Internet. This is a manual for educational decision-makers on building a K-12 network written for both computer-literate readers and those with little computer experience. Part 1 summarizes steps in planning, funding and implementing a network, with examples of proven project-management methodology. Proper functioning, upgrading and future directions are discussed. Part 2 is a guide to usage of the Internet, from policy and protection issues to "virtual field trips". Rural and remote schools educators should find a section appropriate to their needs. Part 3 explains specific technical guidelines for network infrastructures, with details on network topology, protocols and the types of connection media. A glossary of Internet/computer terms is included.