Abstract: Research social networking site is an important tool for researchers. This paper makes a study of the blog of Science Net.cn, investigates user＇s characteristics, the basic function and service of the platform, user ＇s perceived satisfaction and continuance intention and group outcome, etc., analyses the relationship between the group characteristics and the group cohesion, the relationship between the group cohesion and user ＇s perceived usefulness and continuance intention. The conclusion can provide some references for the service development of existing research platform and the establishment of a reference platform or community of the library.

Key words: science 2.0; research social networking site; group characteristics; group cohesion; library service