A buzzword voting manager manages vote points of each sponsor for each of buzzword candidates selected in advance, and decides buzzwords based on the vote points. A buzzword acquiring unit selects a buzzword to be displayed based on a preset criterion from among the decided buzzwords. A portal unit generates a hypertext content that includes a buzzword list or a sentence including the selected buzzword, and transfers the generated hypertext content to a user terminal. A search engine unit receives a search request with the buzzword as a keyword, and transfers a search result of contents on a website to a source of the search request.
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