E-book advertisement system, e-book advertisement method, client device, advertisement-provision device, program, information-recording medium, and e-book update system

An e-book advertisement system, comprising:

• history information acquisition means for acquiring history information of an e-book including a text page and an advertisement page, the history information including at least one of pieces of information on a zoomed-in display part, a time period of display, and a number of times of display of a page which is displayed in response to display control performed when an operation relating to display of the page is received from a user;
• advertisement data acquisition means for acquiring advertisement data associated with an advertisement subject selected based on the history information from advertisement subjects determined in advance for each display part of the displayed page;
• selection means for selecting from among pages of the e-book at least one advertisement page which is yet to be displayed;
• and
• update means for updating the at least one advertisement page selected by the selection means based on the advertisement data acquired by the advertisement data acquisition means.

An e-book advertisement method, comprising:

• acquiring history information of an e-book including a text page and an advertisement page, the history information including at least one of pieces of information on a zoomed-in display part, a time period of display, and a number of times of display of a page which is displayed in response to display control performed when an operation relating to display of the page is received from a user;
• acquiring advertisement data associated with an advertisement subject selected based on the history information from advertisement subjects determined in advance for each display part of the displayed page;
• selecting from among pages of the e-book at least one advertisement page which is yet to be displayed;
• and
• updating the selected at least one advertisement page based on the acquired advertisement data.

An e-book advertisement system, comprising:

• a client device;
• and
• an advertisement-provision device, wherein:
• the client device includes:
• e-book acquisition means for acquiring an e-book including a text page and an advertisement page;
• display means for displaying at least a part of a page included in the e-book;
• display control means for switching, when a page switching operation is received from a user, the page displayed on the display means, and zooming in and displaying, when a page zooming-in operation is received from the user, a specified part on the page displayed on the display means;
• recording means for recording history information including at least one of pieces of information on a zoomed-in display part, a time period of display, and a number of times of display of the page displayed on the display means;
• and
• transmission means for transmitting the history information recorded by the recording means to the advertisement-provision device;
• the advertisement-provision device includes:
• advertisement data acquisition means for acquiring, based on the at least one of the pieces of information on the zoomed-in display part, the time period of display, and the number of times of display of the page which is recorded in the history information transmitted by the transmission means, advertisement data associated with an advertisement subject selected from advertisement subjects determined in advance for each display part of the page which is recorded in the history information;
• and
• advertisement data transmission means for transmitting the advertisement data acquired by the advertisement data acquisition means to the client device;
• and
• the client device further includes:
• selection means for selecting from among pages of the e-book at least one advertisement page which is yet to be displayed;
• and
• update means for updating the at least one advertisement page selected by the selection means based on the advertisement data transmitted by the advertisement data transmission means.