Discusses the concept and characteristics of artificial intelligence software for information retrieval, news filtering, clerical support, personal shopping, and investment counseling. Research projects on artificial intelligence at six academic institutions and examples of nine retrieval agent software packages are highlighted. Sidebars discuss…

Articles in this special issue deal with the assessment of the impact of research and are divided into segments concerning semiquantitative approaches; qualitative approaches; and quantitative and fiscal approaches. These articles illustrate the importance of the role of motivation and associated incentives. (SLD)