| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that the original purpose of a sponsor cannot be attained possibly because advertisement can completely be neglected since there is no means for selecting advertisement by the side of a user in an electronic medium for broadcasting, communication, etc., giving a free service by an advertising expense. SOLUTION: The means for selecting advertisement is provided on the terminal of a user. The side of a center can manage who has selected what advertisement. |
