Reports the design, methodology, and results of a research project which examined the effectiveness of bibliographic displays produced by online catalogs. A means of testing displays against several hundred thousand records at a reasonable cost and using that to test several display possibilities is described. (CLB)

This review of the overall findings of the "Educating the Online Catalog User" project at Northwestern University Library focuses on methods of data collection used in evaluating online catalog performance and user performance. The rationale and methodology of transaction log monitoring and new directions for technical development are…

Offers a model for choosing among CD-ROM, end user access, mediated online searching, or locally mounted files as alternatives for extending online catalogs and replacing printed indexes. Estimates of demand and comparisons of costs made at Trinity and Clemson Universities provide a quantitative framework for selection. (Contains four references.)…