On biographic works of contemporary leaders;

The paper discusses the driving mechanism of Marxism development from aspects of human practical activity,the diversity of backgrounds,characteristics,requirements and the themes at different historical phases in human society development,the inherent theoretical characters of Marxism,the consciousness and innovative spirit of Marxist parties and their political leaders on constructing theories.

Mao Ze-dong, the great leader of Chinese revolution, was the choice of history, because his personal virtues (subjective qualifications) corresponded with the characteristics of Chinese revolution.

For the good running of organization, the appearance of leader is necessary.

As a widely existing social phenomenon, leader worship has such characteristics as universality, complexity and repeatability.

The Opinion Leader:the Important Variable in the Process of Propagating the Public Policy in Present Rural Area of China;

The innovation of this part is to apply the " opinion leader" theory of the "two grades mode of communication" to demonstrate t.

Then we validate its characteristics of small world networks and successfully find out the opinion leaders in on-line community based on small-world network.