METHOD AND SYSTEM FOR PROVIDING ADVERTISEMENT USING KEYWORD ACCORDING TO REGULAR RULE OR KEYWORD THAT SOLD ACCORDING TO REGULAR RULE

摘要

Disclosed are a method and system for providing an advertisement using a keyword according to a predetermined rule or a keyword sold according to a predetermined rule. The method of providing an advertisement may include checking a string input by an advertiser, checking a keyword matching engine selected by the advertiser among a plurality of keyword matching engines for checking a match between strings according to different rules, and selecting the string. Storing in association with a keyword matching engine.