Abstract: Provided is a server room cooling apparatus and method using natural air. The server room cooling apparatus includes an inlet part to take in outside air, a spray part to spray mist on the outside air that is taken in, and a supplying part to supply the outside air on which the mist is sprayed to the inside of a server room.

Abstract: Provided is a server room cooling apparatus and method using natural air. The server room cooling apparatus includes an inlet part to take in outside air, a spray part to spray mist on the outside air that is taken in, and a supplying part to supply the outside air on which the mist is sprayed to the inside of a server room.

Abstract: Disclosed are a marketing message providing system and method. The marketing message providing system is capable of providing a marketing message for inducing the user to access a service of a business owner. Through the marketing message, the user is able to receive targeted information and the business owner is provided with the opportunity in which the user can access the service of the business owner, thereby improving profits.

Abstract: An advertisement system and method based on a traffic quality of a medium are provided. The advertisement system, in which an advertiser selects a medium on which an advertisement of the advertiser is to be displayed, may include an advertisement cost calculating unit to calculate an advertisement cost for the advertisement of the advertiser based on a quality indicator of the selected medium.

Abstract: Provided is a system and method for adjusting a number of advertisement inventories based on a competition factor. An advertisement inventory adjusting system includes a competition determining unit to determine a competition factor for a keyword, an advertisement inventory adjusting unit to dynamically adjust the number of advertisement inventories based on the determined competition factor, and a data storage medium to store advertisement inventories. A method that uses a processor to adjust a number of advertisement inventories includes determining a competition factor for a keyword advertisement with respect to a keyword, and dynamically adjusting, using the processor, the number of advertisement inventories based on the determined competition factor, in which the advertisement inventories refer to available areas to display the keyword advertisement.

Abstract: Provided are a system and method for providing a wireless network service to a user terminal free of charge, by providing a doorway page for exposing an advertisement on the user terminal provided with the wireless network service through an access point. Accordingly, the user terminal may be provided with the wireless network service free of charge, other than the cost of viewing the advertisement exposed on the doorway page. An advertiser and a proprietor may expose the advertisement at the cost of providing the free wireless network service.

Abstract: Disclosed is a method and system of preventing browser-based abuse. The method of preventing browser-based abuse may include determining whether an access based on a browser function extension module is a malicious access for acquiring data of an Internet browser, and blocking the access based on the browser function extension module when the access is determined to be a malicious access.

Abstract: Disclosed are an auction method and system, an advertising method and system, and a charging method and system, based on a bid price depending on a time period, and a fixed unit price depending on clicks or exposures. The advertising method may include verifying an advertisement exposure priority determined with respect to an advertisement of an advertiser, based on a period-based bid price which may be input from the advertiser, and exposing the advertisement of the advertiser during a time period corresponding to the period-based bid price, through an advertisement exposure region depending on the verified advertisement exposure priority, wherein an advertising fee depending on the exposure of the advertisement may be calculated based on the period-based bid price, a unit price per click (or a unit price per exposure) determined through an administrator system, and a number of clicks (or a number of exposures) which may actually occur during the time period.

Abstract: Disclosed are an auction method and system, an advertising method and system, and a charging method and system, based on bid prices depending on clicks or exposures, and a time period. The advertising method may include verifying an advertisement exposure priority determined with respect to an advertisement of an advertiser, based on a bid price per click (or a bid price per exposure), and a period-based bid price which may be input from the advertiser, and exposing the advertisement of the advertiser during a time period corresponding to the period-based bid price, through an advertisement exposure region depending on the verified advertisement exposure priority, wherein an advertising fee depending on the exposure of the advertisement may be calculated based on the bid price per click (or the bid price per exposure), a number of clicks (or a number of exposures) which may actually occur with respect to the advertisement during the time period, and the period-based bid price.

Abstract: Disclosed are an auction method and system, an advertising method and system, and a charging method and system, based on a bid price depending on clicks or exposures, and a fixed unit price depending on a time period.

Abstract: Provided is a system and method providing a search result by registering an extended keyword. A search result providing system may include a registration keyword determining unit to determine whether a registration keyword is required to be additionally registered based on at least of information associated with a registration of an input keyword, and a registration keyword registration unit to additionally register the registration keyword associated with the input keyword.

Abstract: A method, system, and computer-readable recording medium for holding an auction and imposing a charge in relation to a search advertisement are provided. The method includes receiving bid information related to the search advertisement from an advertiser calculating device, the bid information including a search keyword, a posted time of the search advertisement, and a bid price for the search advertisement, determining a posting position and/or a posting order of the search advertisement with respect to a predetermined time slot of the posted time of the search advertisement, based on the bid price corresponding to the time slot, and posting the search advertisement according to the determined posting position and/or the posting order for the predetermined time slot.

Abstract: A method and system for offering an advertisement by adjusting a bid price per unit time according to advertising traffic are provided. The advertisement offering method includes determining a bid price per unit time based on an average bid price input by an advertiser and advertising traffic, and determining a charge regarding the advertisement of the advertiser based on the bid price per unit time.