Online publishing, also known as Internet publishing, refers to the selection and editing of works created by others or others created by Internet information service providers, posted on the Internet, or sent to the client through the Internet for public viewing, reading, use or Download online spread behavior. Which of the following does not belong to online publishing? ['A search site collects a large number of songs for Internet users to download freely.', "A health website sends common knowledge about health care to members' e-mail boxes every day.", 'An electronic map website provides public transportation routes in most cities for online users to check.', 'A website lists a set of encyclopedia CDs in the merchandise list, and customers can obtain CDs through online purchases.']