Abstract: The position-linked chat system makes it possible to carry out a chat using many terminals connected to a server device through the Internet. The server device includes a chat room controller which generates many chat rooms based on a geographical standard, a chat room selector which selects a chat room in which a user of certain terminal is to participate based on information relating to the current position of that terminal, and a voice controller which mixes voices of users transmitted from the terminals of respective users participating in the same chat room.

Abstract: A chat system of the present invention, which is constituted by a server device and client devices that are connected to each other through the Internet so as to communicate with each other, is provided with a comment contents extraction processing section which extracts the contents of a comment in each of chat rooms; a comment contents DB for storing the contents of the comment thus extracted, for each of the chat rooms or for each of the users; a retrieval processing section which generates reference information used as reference when the user makes a selection from chat rooms, based upon the contents of comments; and a communication control interface for informing the user of this reference information. The object of the present invention is to provide a chat system, etc., which allows the user to easily select a chat room that fits in with his or her tastes.

Abstract: A communication system according to this invention is constituted such that a server apparatus for processing mutual conversation data of a plurality of users and client apparatuses of the respective users are connected to each other. The server apparatus includes a chat processing section or a message processing section which can output advertisement data for performing advertisement to the users to the users through the information terminal apparatuses together with conversation data, and a communication processing control interface for transmitting the advertisement data and the conversation data to the client apparatuses.

Abstract: A system for providing information according to the present invention is a system with a configuration where a server device 1, and a client device 2 are connected to each other through the Internet 3 so that the devices may communicate each other. The server device 1 comprises a incentive DB 13 storing incentive-information for specifying the contents of incentives which are given to browsers who browse information, and a incentive-process section 16 by which the contents of incentives which are given to browsers browsing the information are stored in the incentive DB 13 after specifying. According to the present system, entirely new incentives for making browsers browse Web pages may be given.

Abstract: A system according to the present invention has a plurality of client units connected to a server unit 100 via a network, to enable users of the client units to communicate with each other using the client units. The server unit stores product information according to a product that an online shopping site sells. The server unit receives a recommendation request for a first user to recommend the desired product, and notifies a second user about a message that the first user recommends the product to the second user, based on the received recommendation request.

Abstract: An input format is transmitted to a client device of a user. The user fills his own information in the input format. The input information is transmitted to a server device. The server device creates the user's home page based on the user's information. Users who pay a particular amount of money are allowed to update their homepages.

Abstract: The advertising system allows said server device to transmit advertising data to many client devices. The server device includes attribute information DB and URL history information DB each of which stores information related to the users. Advertising information DB stores advertising data. Advertisement selection section and transmission data generation section generate advertisement transmission data.

Abstract: The position-linked chat system makes it possible to carry out a chat using many terminals connected to a server device through the Internet. The server device includes a chat room controller which generates many chat rooms based on a geographical standard, a chat room selector which selects a chat room in which a user of certain terminal is to participate based on information relating to the current position of that terminal, and a voice controller which mixes voices of users transmitted from the terminals of respective users participating in the same chat room.

Abstract: The communication system is intended to communicate by using client devices connected to the server device through the network. The server device comprises a matching unit which transmits the information about users as candidates for participants in the chat to the client devices, and a chat processing unit which transmits information for starting the chat to the client devices of the selected users and the client device making the request, when start of chat is requested.