An on-line educational notebook for selectively providing access to submitted on-line content is disclosed. The notebook allows authorized users to add, edit, and delete various text, audio, video, graphics, or multimedia content items. A student may also enter course notes in the on-line notebook and...http://www.google.ca/patents/US6965752?utm_source=gb-gplus-sharePatent US6965752 - On-line educational system having an electronic notebook feature
