Abstract
The various aspects of planning for online service are discussed from the viewpoint of sci-tech libraries operating in the Executive Branch of the Federal government, not including the special cases of the three national (or quasi-national) libraries. The effects of statutory and geographic requirements on Federal libraries' online service are made clear, followed by such elements of planning as selling the program, integrating the service with others, selection of databases, staffing, equipment selection, and impact of the service.