Research on the Application Model ofPersonal Knowledge Management Based on Social SoftwareAbstract : In recent years, Internet has been glutting with Social Software, like Hotmail, MSN, ICQ, etc. How to effectively apply them into Personal Knowledge Management,which is the process of obtaining, evaluating, arranging, analyzing, revealing and sharing information, is an extremely significant job for educational researchers. Many studies have used one SS in PKM, there is no research on the combination of various SS to apply them effectively in PKM. Our paper, therefore, studies the macrocosm of the application of various SS in PKM.Keywords:Social Software; Personal Knowledge Management; BLOG, WIKII. INTRODUCTIONSocial Software, the driving force of the new Internet revolution, play an important role in the information share among people. By using SS, the spreading of knowledge and the expansion of relative information can be strictly followed. Therefore, the natural relationship between SS and personal knowledge management can not be broken off. It won’t be hard to imagine that PKM will become part of SS in the future. Therefore, many scholars, companies and individuals have been attracted to do all kinds of researches, software development and practices, which make the practice of SS in PKM become a new sector. However, in terms of the practices and researches in a certain of SS, macrocosm had been short of. This article will offer a new complete application model of SS which supports to PKM.II. SOCIAL SOFTWARE OVERVIEWSocial Software (SS), a result of the socialization of software, has always been a hot topic since 2025. Social software is normally applied to a range of web-enabled software programs. ...