Saiwo.com (Cyworld) is the largest community website in South Korea. It focuses on providing wired and wireless Internet communication platforms and provides various Internet services, including diaries, photo albums, forums, graffiti, messages and so on, to the majority of network and mobile phone users. Different from the virtual network community, it emphasizes reality and provides various tools to interact with others, so as to get rid of previous blogs, friends and alumni records Limitations of single display and communication such as BBS and community. In June 2005, Korea saii.com officially logged into China（ http://www.cyworld.com.cn ）, bring an online home integrating personalized space and social network to Chinese netizens.
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