| 摘要 |
PROBLEM TO BE SOLVED: To perform an effective advertisement. SOLUTION: When a new customer comes to a store, the customer is registered in an advertisement server 1 from a store terminal 2. When the customer registers an advertiser in its own buddy list, an advertisement is delivered to a user terminal 4. The advertisement of the advertiser is registered in a buddy list system 3 as if it is the state information of the advertiser, whereby the advertisement is delivered to the user terminal 4 through the buddy list system 3. In order to have the advertiser registered in the buddy list by the customer, the advertiser provides an incentive to the customer registered in the buddy list (hereinafter referred to as registered customer). Examples of the incentive include the premium payment of the point to be given to customers according to purchase result to the registered customer. |
