Use of radio for nonformal education and development communications and the technical and economic considerations related to radio services are covered in this second volume of case studies on use of radio for education and development. Under radio and nonformal education are: an evaluation of radio schools as part of the popular promotion strategy of rural development in Honduras (focusing on adult basic education--literacy, health, arithmetic, agriculture--leadership training, and community organization); a report on harnessing radio to mass educational campaigns in Tanzania from first efforts to the massive health education campaign in 1973 (based on a radio series, supporting printed materials, organized radio study groups); a description of a pilot project in Senegal coupling rural educational radio programs to community listening and feedback; an explanation of three paradigms for open broadcast educational radio (top-down and bottom-up communication and a synthesis of the two); and guidelines for radio forums as a rural development strategy. Under radio for development communications are case studies on community use of radio in the Canadian North and interactive radio for health care and education in Alaska. A final section covers technical and economic considerations that should go into planning radio services in order to attain development goals. (RS)