This paper reviews recommended guidelines for World Wide Web-based instruction and provides a framework for libraries worldwide in designing Web-based instructional programs. The first section describes Web-based training, including interactivity and the content and objectives of Web-based library tutorials. The second section discusses Web design and evaluation criteria for library professionals, including guidelines developed by the Library Instruction Round Table of the American Library Association and the Instruction Section Teachings Methods Committee of the American Association of College and Research Libraries. The third section addresses Web design and evaluation criteria in non-library sources. The last section covers ssessment and usability studies. An addendum provides brief descriptions and Web site addresses of projects outside the United States that are involved with teaching and learning in a networked environment. (Contains 14 references.) (MES)