| 摘要 |
PROBLEM TO BE SOLVED: To enable an information provider not only to post input information but to provide information according to an event from the information provider when the date of the event has come, and enable the information provider to provide information. SOLUTION: A category 251 and advertisement 252 are contained in advertisement information 250 transmitted from a registered terminal 5 to an information management site 2, and in the information management site 2, the advertisement information 250 is registered in an advertisement data base 25. The contents 400 and a sending date of an electronic mail are contained in posting information 410 transmitted from a customer terminal 4 to the information management site 2, a match in category 251 between the contents 400 of the electronic mail and advertisement information 250 is searched, and an advertisement 252 corresponding to the contents 400 of the electronic mail is inserted and transmitted by electronic mail on a sending date 412. |
