By using factor analysis method,the paper explored the factors of dynamic development and utilization of network resource with the data of numbers of fans,blogs,posts,meaningful posts in some users' interaction platform,such as Sinamicroblog,Tianya BBS and Sina Blog.The results showed that the network users and resources are two important factors.Resources include original resources and renewable resources,and the opinion leader is a special network user.In order to promote the development and utilization of network information resources,the p...