Abstract: A method and system for providing an advertisement using a minimum incremental unit are provided. The advertisement providing method includes adjusting a minimum incremental unit based on an initial bid price, an input bid price, and a maximum bid price bid price during an auction. The minimum incremental unit includes a minimum value of increment to be included in a current input bid price in addition to a previously input bid price.

Abstract: Disclosed herein are a method, a system, and a computer-readable recording medium for performing charging for a search advertisement based on a publication ratio thereof.

Abstract: A charging method and system for determining an advertising cost according to a unit time are provided. The charging method includes checking a performance index numerically indicating performance of an advertisement; checking a priority index of a next-priority advertisement to the advertisement; and determining an actual charge per unit time of the advertisement based on the performance index, the priority index, and a predetermined weight.

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: Disclosed is a method and system for managing quality of an advertising document. The method of managing document quality may include verifying a number of actual clicks corresponding to a number of clicks that may occur during a predetermined period with respect to at least one document that may exist on the Web, verifying a number of expected clicks corresponding to a number of clicks that may be expected to occur during the predetermined period with respect to the at least one document, and determining a quality management index by which quality of the at least one document may be numerically expressed based on the number of the expected clicks and the number of the actual clicks.

Abstract: Disclosed herein are a method and a system for providing an advertisement using a bidding starting price. The method for providing an advertisement includes: determining a bidding starting price for each keyword based on a minimum cost per click for a keyword and the number of expected clicks for the keyword; determining an area in which an advertisement of an advertiser is to be exposed based on a bidding price per unit time input from the advertiser; and providing the advertisement of the advertiser through the area, wherein the bidding price per unit time has a value of the bidding starting price for each keyword or more.

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.

Abstract: An advertisement method using a free ring tone providing service is provided. The advertisement method using the free ring tone providing service includes the steps of: embedding a Digital Rights Management (DRM) code into advertisement contents; acquiring DRM information of the advertisement contents via the DRM code embedded in the advertisement contents when the advertisement contents are replayed with a ring tone in a user terminal of a user being a member of a service which receives the ring tone and the advertisement contents without any financial charge; and charging for the advertisement contents based on the DRM information. Also, an advertisement system using a free ring tone providing service is provided.

Abstract: A method of and system for generating a list using flexible adjustment of an advertising domain, in which the domain size of a display field is determined depending on the number of advertising information to be arranged in each display field so as to create a search result list through flexible adjustment of an advertising domain unlike a conventional method of limiting the number of advertising information to be arranged in each display field so that an item of advertising information is arranged within a predetermined number allocated to each display field. According to the present invention, it is possible to flexibly determine the domain size of a display field within a search result list in view of the number of advertising information to be arranged in the display field.