Methods, systems, and articles of manufacture consistent with the present invention use a data processing system to aggregate information reflecting demand for an item based on input requests associated with the item, each request having been received from a remote user and including remote user identification information, provide the aggregated information to a plurality of suppliers, each capable of supplying the item, receives at least one proposed response from at least one of the suppliers, including a proposal for providing the item to the remote users, and provides the proposed response to the remote users based on the remote user identification information. Aggregated information is provided without the remote user identification information associated the requests.