Abstract: A power exchange management device includes: a power consumer service processor that receives bid solicitation information from a power consumer, the bid solicitation information being for soliciting exchange of power; a prosumer service processor that publicizes a bid solicitation condition on a terminal device of a prosumer on the basis of the bid solicitation information and receives application information responding to the bid solicitation information from the terminal device of the prosumer; a prosumer power transmission information acquirer that acquires information about an amount of power transmitted to the grid by the power transmission facility of the prosumer by reverse power flow; and a target manager (24) that compares the acquired amount of transmitted power with a target value set on the basis of the bid solicitation information and the application information and determines an incentive to be offered to the prosumer depending on a result of the comparison.

Abstract: It is provided a video distribution system including a video distribution module, a control module, and a bookmark management module. The bookmark management module manages a first type bookmark whose status is not changed by viewing of the video and a second type bookmark whose status is changeable after the viewing of the video. The control module generates screen data that enables one of the first type bookmark and the second type bookmark to be selected with regard to the video stored in the library, transmits the generated screen data to the one of the receiving terminals, and sets one of the first type bookmark and the second type bookmark, which is selected by a user using the one of the receiving terminals, for the video and record the one of the first type bookmark and the second type bookmark in the bookmark management module.

Abstract: It is possible to provide a service which can be easily customized in accordance with a user's preference. A method for providing information by a data processing device is applied to a data processing device which can acquire information from other information providing site via a network. In the state of display as a menu icon in a menu region on a desktop, no operation of menu is performed. In the state when the menu icon is dragged from the menu region to the desktop, it is possible to obtain operation of the menu as a Widget icon which displays the information acquired via the network.