Abstract
Commercial document supply and full-text online databases play significant roles in the shift from "ownership" to "access". The escalating costs of science and technology journals, budgetary constraints, and availability of sci-tech literature via non-traditional sources, such as commercial document supply and full-text online databases, are reshaping academic libraries' sci-tech collections, as well as the modes of accessing and delivering scientific information. Examines the value and the effectiveness of commercial document supply services and full-text online databases in accessing sci-tech information and discusses the impacts of budgetary limits and technology on academic libraries acquiring sci-tech literature.