Educational services, namely, providing professional continuing education courses for physicians, dentists, attorneys, accountants, chiropractors, nurses, psychologists, respiratory care therapists, and other professional-based students via CD-ROM, DVD, video-on-demand, Internet video streaming, on-line seminars, and high definition televideo conferencing in the field of medicine, dentistry, law, accounting, chiropractic, nursing, psychology, respiratory therapy, and other professional-based fields which require continuing education courses to be completed in order to maintain state licensure within a given profession