This update to a previous digest briefly describes the Internet computer network, the physical connections and communication protocols that make it possible, and the applications and information resources the network provides. The applications covered include electronic mail and listservs, the world wide web, telnet connections with remote library…

The Internet is a worldwide network of computer networks. In the United States, the National Science Foundation Network (NSFNet) serves as the Internet "backbone" (a very high speed network that connects key regions across the country). The NSFNet will likely evolve into the National Research and Education Network (NREN) as defined in…

Since professional development schools (PDSs) emerged in the mid-1980s as a promising approach to improving teacher education and P-12 schooling, information about these institutions has become more abundant and more accessible. Four primary sources of PDS information are discussed in this digest: the ERIC database, electronic resources, fugitive…