Abstract
The article deals with following issues: - plurality of mass media as a freedom of speech principle, - regulation of mass media and its two faces: regulation as a way of limitation of freedom of expression and regulation as a way of protection of freedom of expression, - danger of mass-media monopoly for “free trade of ideas”, - regulation of content versus regulation of access, the question of positive obligations of state power resulting from constitutional guarantees of freedom of speech, - legal means for securing of mass-media plurality and question of its constitutional conformity with protection of property (regulation of mass-media ownership as a protection of freedom of speech).