An Internet-based integrated technology platform that simultaneously supports the management of Public Information Sites--Web sites used to both (1) inform the public; and (2) capture and manage public comment (including submission of images)--while at the same time providing support for electronic communication for project teams that manage public involvement projects. The support includes sharing of graphic, text and collaborative tasks. The system and method allow revisions to comments and dynamic feedback in agency decision making based on comments with greater responsiveness. The system is also suited for implementing charettes with a large number of participants.