This report describes a practicum which was designed to effect a significant increase in the number of students at a suburban high school who were both aware of and capable of using the online catalog and the CD-ROM reference systems, and who could also successfully communicate via electronic mail through a free network offered by the county library system. A small cadre of seniors received instruction from media specialists who certified them as Media Center Trainers. These seniors then became peer tutors in training sessions to 65 ninth graders. Practicum activities for the researcher involved scheduling sessions, setting up mail accounts, and designing the training program. Analysis of collected data demonstrated that ninth graders gained the desired skill increases, and the seniors enhanced their research skills and gained confidence and self-esteem as a result of their participation. Appendices include copies of pre- and post-training surveys, a proficiency certificate for exploratory teachers, practice assignments, a skill verification report, and photographs of the training. (Contains 17 references.) (BEW)