Then too, policy makers at all levels are becoming aware that making use of information technology in schools also requires a high cost that must be paid in terms of the time, effort and enthusiasm required of teachers who must learn to use the new technology. These resources are not directly measureable, but they are surely not unlimited. There is a limit to the number of inservice workshops that can be effective in a single year, and to the number of new initiatives that teachers will be willing and able to support, actually implement and maintain over the long haul.