| 摘要 |
<P>PROBLEM TO BE SOLVED: To acquire an efficient effect of advertising without necessity of high cost. <P>SOLUTION: An information processor of a purchaser 4 who purchases an article or a service of a sales agency via a communication network from an information processor of the sales agency 2 or an advertising agency 3 includes a step which transmits introduction information to introduce the sales agency 2, a step which the purchaser 4 transmits the introduction information to information processors used by one or a plurality of introducers 5, a step which determines whether the introducer 5 receiving the introduction information conducts an approval action for agreement, at least, to read the introduction information or not, a step which automatically transmits the information that the approval action is conducted to the information processor of the advertising agency 3 from the information processor of the introducer 5 when the introducer 5 conducts the approval action, and a step which the advertising agency 3 or the sales agency 2 provides a prescribed privilege to the purchaser 4 who introduces the introducer 5 based on the information automatically transmitted from the introducer 5. <P>COPYRIGHT: (C)2004,JPO |
