A system and method supporting access, coordination, modification, updating, and management of multiple sources of multimedia information resident on a plurality of access device is disclosed. A broadband access gateway may support applications that perform user services involving multiple sources of multimedia information across a network by acting as a focal point for access to multimedia information related to the applications. Using information that identifies such sources, the broadband access gateway may coordinate modification of one or more multimedia information sources based upon the content of other related sources of multimedia information. One such application may include the coordination of calendars for the planning of a meeting involving multiple participants. A representative embodiment of the present invention may identify available meeting dates and times, and the placement of reservations for appropriate travel accommodations using services accessible to the broadband access gateway via a broadband network.