Paper, Master of Education, Pennsylvania State University, University Park. Page 45 in Jasper S. Lee and Ruby D.Rankin (eds.), Summary of research in extension, 1988-89, Volume 4. College of Agriculture and Home Economics, Mississippi State University, Cost analysis of the PENmail system for communication within Penn State Cooperative Extension. The system "has proved to be cost-effective and, in fact, avoiding costs of $240,202 annually."