Ifferences and similarites between traditional forms of reference services and those with new emerging technologies

This is the question:
Library references have traditionally used face to face or telephone conversations to address patron needs. Networked technologies have supplemented or supplanted these traditional methods. Analyze the differences and similarities between the more traditional forms of reference services and those enabled with new and emerging technologies. Discuss the opportunities, service quality, and benefits/risks of the more traditional and the more technology-enabled.