One of nine brief guides for special educators on using computer technology, this guide focuses on the selection of software for use in the special education classroom. Four types of software used for computer assisted instruction are briefly described: tutorials; drill and practice; educational games; and simulations. The increasing use of tool software systems (word processing, spreadsheet, and database systems) in educational settings is noted. An educational value is also seen in arcade and adventure games, which may be modified if necessary to increase their accessibility to students with disabilities. Specific criteria for evaluating software are offered in the areas of content, demands on the learner, instructional presentation, technical features, and documentation and management features. Four periodicals which regularly review software, six resources for public domain software, and six directories of software are listed. (DB)