As a new-style computer-mediated communication system, the blog has been gaining popularity among various Web users. Blog communities come into being in the process of self-organized communication between bloggers and the community structures are reflected by the embedded social networks. This study research the communication patterns of scientist bloggers with the data from the largest Chinese-language scientific blog community specializing in computer and information sciences and technologies, i.e. the Csdn blog. The social network analysis of its blogroll link data suggests that the Csdn blog community is a small-world network. Many sub-communities exist in the blog community. The communication between the central and ordinary bloggers within the same sub-community is usually one-way and dense. The structure of the Csdn blog community indicates that distributed central actors are still important in the diffusion and communication of scientific knowledge.
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