Express Freedom & Its Restriction Of Public Opinion On Internet

This dissertation gives conclusions on the basic point that: any forms of public opinion are double-edged swords; while the public opinion on Internet is a double-edged sword with the science & technology its medium. This dissertation argues that: in order to use this double-edged sword reasonably, we must make the express freedom of public opinion on Internet obtain enough guarantee and receive due restriction. Because of the characteristic of Network, this guarantee and restriction of express freedom is different from other forms of public opinion with its unique characteristic.First, from three respects (the decentralization of the subject, the politicalization of the object and the society-flatten of the course of public opinion) this dissertation concludes that: the express freedom of the public opinion on Internet may be and is being protected, which is of value to the political civilization.Second, from three respects (the restriction of the subject, the filtering-choice of the object and unreasonalization of the course of the public opinion) this dissertation also concludes that: the express freedom of the public opinion must be and is being restricted by some factors.Third, this dissertation constructs a coordinate axis, with the three factors of public opinion (the subject, the object and the course) its X-axis and the forms of traditional media public opinion its Y-axis. With this coordinate axis, the dissertation analyses the common and different characteristic between the traditional media public opinion and the public opinion on Internet.At last, this dissertation believes that the express freedom of public opinion is an important and necessary tool to realize the political civilization. Only when the guarantee and the restriction of the express freedom of public opinion can be combined organically, the public opinion on Internet may promote the process of the political civilization.