At the center of hypertext is the link, an active connection from part of one document to another document (or part of that document). In the early days of the World Wide Web, it was easy for readers to identify the links on the page: the unvisited links appeared in blue and underlined, the visited links appeared in red or purple and underlined.…

Law is grounded in the past, in the decisions and reasoning of generations of lawyers, judges, juries, and professors. Ready access to this history is vital to solid legal research, and yet, until 2000, much of it was buried in vast collections of aging paper journals. HeinOnline is a new online archive of law journals. Development of HeinOnline…

Describes the security issues Bluestem, a Web authentication and access control system under development at the University of Illinois at Urbana-Champaign, is designed to resolve. Provides an overview of how Bluestem works and details how Bluestem is currently being used to control end-user access to bibliographic resources licensed by the…

Compares six leading Web search engines (AltaVista, Excite, HotBot, Infoseek, Lycos, and Northern Light), looking at the breadth of their coverage, accuracy, and ease of use, and finds a clear favorite of the six. Includes tips that can improve search results. (AEF)

Describes graphical elements--backgrounds, buttons, rules, and enhancements like drop shadows--that can transform Web pages without significantly increasing download time. Used thoughtfully and consistently, such graphical elements can create a unique style that serves as a personal Web page trademark. (AEF)

Clifford A. Lynch, developer of MELVYL and former director of library automation at the University of California, is now executive director for the Coalition for Networked Information (CNI). This interview discusses Lynch's background, MELVYL, the Web and the role of libraries and librarians, community and collaborative filtering, the library of…

Discusses some of the theory underlying visual access tools for special collections, introduces a specific World Wide Web application using the technology, and indicates some of the potential of the tool for visual access to images as well as text documents. Appendices include texts of courses used for proximity calculations as well as NASA…

Outlines where expert systems can be most effectively used, what types of applications are best for building expert systems, and how to put expert system applications on the World Wide Web. Illustrates how decision-making knowledge and logic can be made available on the Web, and includes examples of computer screens. (Author/LRW)

Describes the design and implementation of a prototype visualization system, AuthorLink, to enhance author searching. AuthorLink is based on author co-citation analysis and visualization mapping algorithms. AuthorLink produces interactive author maps in real time from a database of 1.26 million records supplied by the Institute for Scientific…

Discusses data modeling and its relation to computer systems design and describes the components of a distance education course including 13 half-hour videos designed to prepare systems analysts. Highlights aspects of the seventh unit dealing with data modeling. Appendices outline the 13 units of the information technology distance course and…

Provides a brief overview of primary computer network structures serving the academic research community and discusses plans for the transformation of Internet into a National Research and Education Network (NREN). The scope of resources likely to be available to users through the NREN are described, the concept of national collaboratives is…

Discusses issues and procedures involved in auditing the automated acquisitions system at Ohio State University Libraries. The audit process is explained, internal controls within the system are identified, general control mechanisms such as limited electronic access are discussed, and application control mechanisms that relate to specific…

Discusses the structure of intelligent tutoring systems (ITSs) and describes the development of a new structure for ITSs that is not domain dependent and is more readily adaptable by individual teachers. Pedagogical rules that help decide how much student control versus how much teacher control is present in the system are discussed. (14…

Explains how the Directory Service (CCITT X.500/ISO 9594) became an international standard in response to the difficulties of keeping data on information network users current and accessible. Uses of X.500 are described, a technical overview is provided, its functions and protocols are assessed, and directory projects and products are discussed.…

Management of heterogeneous networks is complicated by the persistence of proprietary management schemes. The need for integration of network management capabilities is pressing. The International Organization for Standardization is developing standards for managing networks as part of the Open Systems Interconnection (OSI) effort. OSI management…