Abstract: A system and methodology for use by a plurality of users, each of the users having a display apparatus and an input apparatus. An underlying common display presentation is provided to all of the users as a base image display. A plurality of the users input annotations while the users are viewing the base image display. The annotation data from the annotations is stored in an addressable area of memory associated with the respective said user, for at least two of the users. A modified display presentation is shown to at least two of the users, comprised of the base image display combined with a video display image generated responsive to at least some of the annotation data for at least two of said users.