The three papers presented discuss the components of the pricing structure for online service vendors (Roger Summit); describe an information system designed to provide agricultural weather data to farmers (Lehnert and Scott); and explore the impact of information delivery systems for the home (Mark Plakias). (FM)

When representatives of public libraries with programs to deliver books to patrons by mail met in Las Vegas, Nevada, in June of 1973, the conference brought to a sharp focus the emergence of two different types of books by mail (BBM) programs. One is the urban or metropolitan program serving the four to six percent of the urban population who are…

The four papers in this collection discuss the planning, development, and use of online library catalogs. The first article on the requirements for online catalogs by Velma Veneziano describes such specific features as comprehensiveness, flexibility, affordability, availability, structured access, user friendliness, level of cataloging, and status…

Sixteen papers are presented which focus on microforms and data processing in library and information centers. Articles include discussions of cost analysis, decision making and program planning, library automation, information retrieval, indexing, cataloging, and computer services for libraries. (CH)