To provide a server allowing achievement of an affiliate system for immediately and exhaustively introducing a commodity used in media or an event interlockingly with the media or the event, and to provide a method therefor.

When receiving registration information of the commodity used in the media or the event from a commodity registrant terminal 3, an affiliate income right impartment means 12 of the right impartment server 1 imparts an affiliate income right to the commodity registrant terminal 3 performing earliest registration about the commodity. An affiliate information transmission means 17 of the right impartment server 1 transmits information of the commodity registrant terminal 3 imparted with the affiliate income right to a commodity sales server 7.

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