A project to develop an automated index of information about existing computerized instruction in the health sciences is reported and described. Methods of obtaining and indexing materials for the catalog are detailed. Entry and recovery techniques and selection of descriptors are described. Results to date show that the data base contains information on 226 units of computerized teaching material, broken down into categories of Medicine, Dentistry, Nursing and Pharmacy. Plans for broadening the base and updating it regularly are discussed. (SK)