To provide an advertisement system which uses the Internet and an advertisement generation support tool which can easily generate an advertisement.

This advertisement system 1 uses the Internet IN to publish an advertisement Ia invited from the advertiser 30 to a homepage opened on a server 11 on the Internet and provide this advertisement Ia as information for a customer 20; and the customer 20 previously provides its own personal information Id for the intermediate operator 10 having opened the homepage, and the intermediate operator 10 enables the specific advertisement Ia to be browsed under browsing permission conditions previously set in the personal information Id and advertisement Ia when the customer 20 makes a request to browse the advertisement Ia and then gives the customer 20 a specific incentive according to a specific frequency as to one advertisement Ia and the number of browsed advertisements Ia when the customer 20 browses the advertisements Ia which are enabled to be browsed. Further, the advertisement generation support tool is downloaded.