To improve effects on the costs of advertisements on a Web page, and to perform an advertisement providing service corresponding to a relatively large number of advertisers with limited advertisement exclusive spaces.

The hobby and taste information of a registered user is accepted form the registered user, and stored in a customer DB 414, and a Web page file group 417 including files for advertisements to be carried on a Web page is prepared. Also, the category of each advertisement is managed by an advertisement management table 420. A respective user advertisement processing program module 418 assigns the advertisements among a plurality of advertisements to the registered user based on the hobby and taste information. When the registered user performs access to the Web page, a Web page processing program module 413 selects the contents of the file group of the advertisements assigned to the registered user, and integrates them in the Web page, and transmits it to the registered user.