A technique for supporting secondary use of content of an electronic work. This technique includes receiving, from a user terminal, a use request requesting secondary use of the content of the electronic work, in which a secondary use policy of an author of the electronic work is associated with the electronic work; determining whether the use request satisfies the secondary use policy specified by the author; and transmitting, to the user terminal, together with a unique identifier associated with the use request, content of the electronic work based on the determination or edited content based on the determination.