Describes the Pennsylvania County Mapper, which provides economic and social data by county and enables users to create and customize electronic thematic maps through the Internet. Discusses conditions leading to the development of the site and basic requirements for service; relates experiences with building an online mapping system. (AEF)

OCLC-MARC subscription service tapes can be used as a convenient source of statistical data for collection management. New acquisitions can be analyzed using monthly and annual cumulative tapes to obtain numbers of new titles added by subject, types of material, text languages, and intellectual levels. There are three references. (Author/RAA)

Based on interviews with OCLC staff, network directors, and librarians in member libraries, and related literature review, it is recommended that OCLC take steps to improve statistics it currently makes available and to consider leadership role in helping libraries use microcomputer technology to provide statistics for library management. (27…