This paper aims to assess the relevance and usefulness of the SAPO Campus recommender system, through the analysis of students' and teachers' opinions. Recommender systems, assuming a "technology-driven" approach, have been designed with the primary goal of predicting user interests based on the implicit analysis of their actions and…

GreatSchools.org neatly ranks more than 136,000 traditional public, private, and charter schools nationwide on a scale of 1 to 10, based on state test scores. But what often draws readers are the gossipy insider comments posted by parents, students, and teachers, and the star ratings those commenters contribute. The growth of online school rating…

This examination of the major pricing mechanisms in use by online services discusses the pros and cons of each, including connect hour, type charge, subscription charges, per search charges, computer resource charges, database resource charges, and combinations of above. Pricing practices at Mead Data Central are noted. (EJS)

Comparison cost study of on-line literature searching, and manual and batch searching. Search effectiveness improvements and suggestions are outlined. (Author/KP)

The Document Delivery Service offered by Chemical Abstracts is described in terms of the DIALORDER option on the Dialog information retrieval system, mail requests, and requests transmitted through OCLC's Interlibrary Loan system. Transmission costs, success rates, delivery rates, and other considerations in utilizing the service are included.…

Review of 17 databases available through BRS (Bibliographic Retrieval Services) and/or DIALOG provides addresses of database producers, beginning date of files, and descriptions, including information which may not be given in database documentation. Two new services provided by BRS and DIALOG and three vendors with wider audiences are also…

This overview of 47 online sources for physics information available in the United States--including sub-field databases, transdisciplinary databases, and multidisciplinary databases-- notes content, print source, language, time coverage, and databank. Two discipline-specific databases (SPIN and PHYSICS BRIEFS) are also discussed. (EJS)

Describes the free advisory service available to both users and potential users of chemical and biological databases in the United Kingdom and Ireland. Three specific areas are discussed in which queries about Chemical Abstracts Service (CAS) Registry Numbers have been received: isomers, replacing registry numbers, and mixed compounds. (JD)

Computer based information services available to the Australian community as of June 1977 are listed and described in this directory. The main section is a subject list providing information on 81 data bases, 26 of which are presently operating in Australia. The list is divided into 19 broad subject categories with a brief description, name, year…

This selective 72-item annotated bibliography presents references on information management, executive information needs, and marketing library services which were published in the late 1970s through 1982. (EJS)

Locations of ERIC collections, extent of use, and factors affecting use are surveyed. Methods of computer searching and the effects of online searching on Canadiana and Canadian Education Index are also discussed, and a list of organizations providing ERIC data base search services in Canada is provided. (JAB)

Describes the Information Market Indicators survey that monitors online vendors, database producers, and specific databases in terms of the revenues generated and number of connect hours of usage. Highlights and facts relative to calendar years 1982 and 1983 (usage, revenue data, vendor databases, database producers, classes of users) are…

Describes database produced by Thomson and Thomson and available on Dialog which contains over 700,000 records representing all active federal trademark registrations and applications for registrations filed in United States Patent and Trademark Office. A typical record, special features, database applications, learning to use TRADEMARKSCAN, and…

Discusses the nature of videotex and teletext systems, describes a number of currently operational videotex and teletext systems, reviews the importance of standardization in videotex/teletext information transmission, and outlines the important role played by AT&T and the ANTIOPE system in developing the commercial potential of videotex. (JL)

Green Thumb, the agricultural videotext system that combines large quantities of computer-based information, storage and retrieval on demand, rapid message transmission, and visual display, is examined. Its benefits to farmers and its effect on extension services are discussed. (CT)