We should practically promote the guidance of public opinions in news about peo.

Utilizing the influence of opinion leader and the netwoke of public relation,it is vital to detach target market of merchandise in effect,shorten introductory phase,accelerate growth stage,hold maturity stage,and alarm wane stage in order to improve improve the effect of ad communicating,lover the consume of ad at the same time,and establish the pattern of Precision Advertsing.

By rai- sing some opinions among the public space of BBS,and analyzing the in- fluence of"opinion leader"in the access of formation of public opinions, the author points out that so-called public opinion of modifying constitu- tion,may not represent the opinions of most national actually,and that it involves a danger of subversion of Liberalism and Democracy.

The problems are chiefly: net news embarrassing situation in digital space caused by the control of policy, mechanism and concept; the separating structure of non-center network and the absence of public opinion leader caused by the " no-control" open system; the stereotype of nets that shows no creativity and flimsy i.

The concept of "opinion leaders" has two versions,which oriqinated springs from the book " The People s Choice"(1944) written by Paul F.