PURPOSE: An advertisement system using a cheering post is provided to increase the number of Twitter users visiting the store of an advertiser by changing a cheering ticket distribution notice in an advertisement web page. CONSTITUTION: An advertisement server (120) operates an advertisement web page containing a target cheering fund and an expenditure plan for the cheering fund. The advertisement server is coupled with a Twitter application program interface (API) and allows logging in to the advertisement web page by using a Twitter account. A Twitter server (130) allows writing a tweet on behalf of a Twitter user logged in to the advertisement web page. The Twitter server provides the Twitter API. A communications terminal (110) enables an advertiser using Twitter or a normal Twitter user to use wired/wireless internet. [Reference numerals] (110) Communications terminal(advertiser/twitter users); (120) Advertisement server; (130) Twitter server; (AA) Advertisement web page; (BB) Twitter API
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