The paper builds on four detailed case studies of initiatives that have encountered such obstacles. Each of these initiatives is moving forward, but only by fighting against a copyright-related system that instead should be helping educators accomplish their goals. Drawing on these case studies, other research, and comments made by a cross-section of scholars, lawyers, librarians, and educators who participated in two day-long workshops organized as part of the project, the following emerged as the most significant copyright-related obstacles to educational uses of content.
http://cyber.law.harvard.edu/media/files/copyrightandeducation.html