To provide a free delivery method utilizing a communication means which allows free delivery of digital information, allows the saving of the advertisement rates of an advertizer, enables a user side to receive the free delivery any number of times and can eliminate the problem of infringement of copyright.

A data deliverer 30 inserts the advertisement data provided from the advertizer 20 to the digital information, such as music, provided from a resource provider 10 and delivers the data, free of charge, to a user terminal device through the Internet 40. The data deliverer 30 collects the advertisement rates for the advertizer 20 and pays the royalties on the copyright to the resource provider 10.