PURPOSE: A content price management system and method thereof are provided to calculate content usage amounts according to the length of content displayed by a user terminal.;CONSTITUTION: A content providing server(300) provides content information including content price to a first user terminal(100). In case the content matched with the content information is displayed by the first user terminal, a content selling management server(200) calculates the content usage amounts for the first user terminal based on the content price and the length of the displayed content. The content selling management server updates the content price.;COPYRIGHT KIPO 2012
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