There are provided a method and others capable of appropriately protecting literary works without requiring any operation by a web site administrator or a user. A web server transmits a content, copyright information on the content, and execution information for introducing the content to a creation device. The creation device receives the transmitted content, copyright information, and execution information. When the content is introduced in association with the transmitted execution information, the creation device extracts the copyright information on the transmitted content and transmits the address of the content and the extracted copyright information to a creation program for creating a web page.