This study compared online versions of LISA (Library and Information Science Abstracts), Library Literature, and ERIC to investigate time lag and duplication of coverage. Six searches of each database were executed over a period of 15 months. Results indicated that Library Literature had the least time lag and LISA the most; duplication was low.…

Examines range of coverage and principles of inclusion of dissertations in PsycINFO by comparing searches done on PsycINFO and Dissertation Abstracts Online. Searchers are advised to be skeptical about the accuracy and completeness of vendor documentation and the practical journal literature. Search strategies used are appended. (eight references)…

Compares the relative costs of online and offline printing of retrieved citations in bibliographic searching. A formula for cost comparison is presented, and some of the advantages of high-speed (120 characters per second) output devices are outlined. (JL)

Describes 3.5 years' experience using BRS/After Dark and Dialog's Knowledge Index as the main systems of choice in the mediated search service of a department library on a large academic campus. Factors discussed include average use, costs, databases offered, system capabilities, comparisons of the two systems, and limitations of the systems. (13…

Describes a study conducted at Illinois State University that compared the results achieved by library users searching the ERIC database on CD-ROM with the results achieved by individual and teamed skilled intermediaries. Evaluation of library services is discussed, patron search strategies are examined, and strategies for improving patron…

An examination of OCLC's EPIC service and standard video reference tools revealed that EPIC was more comprehensive in finding video titles on the popular or specialized topics of bonsai, genealogy, karate, and holography, because of its keyword searching ability on the massive OCLC database. (11 references) (EA)