葉乃靜Nei-Ching Yen2014-10-272014-10-271998-10-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/15382Traditionally, public libraries provide services to public without fee, because one of their missions is to provide free access to information. Today, that mission seems imperiled. Many people insist that information is a valuable commodity, and users must pay for its fare use. The purpose of this paper is to raise the issue of the information commodity and its effects on public libraries. Also, by the discussion of the functions and roles of public libraries, this paper intends to help public libraries in deciding their fee or free policy making.資訊資訊商品化公共圖書館公共財Fare useInformation as commodityPublic libraries資訊商品化Information Commodity : the New Challenge of Public Libraries