A dialog facilitator for preserving the spatial and temporal context of a dialog composed of a plurality of postings. The postings are packaged into messages having extended header information which are sent and received using a conventional messaging system. The dialog facilitator retrieves messages from the conventional messaging system, and uses information contained in the messages to populate a posting and a posting summary. Each posting contains detail information and an identifier uniquely identifying the posting., and each posting summary contains the posting identifier, content description information, and referential information identifying a relationship between postings. The referential information identifies whether the posting is related to other postings in the dialog store. Related posting include a commonly assigned dialog identifier. A media coordinator is provided for graphically depicting the spatial and temporal context of a selected dialog posting in relation to other postings belonging to a given dialog.