“…Most existing researches regarding SNS have focused on finding the relationship between demographic/psychological characteristics of users and usage patterns/usage intentions/satisfaction. For example, Jairak, Sahakhunchai, and Jairak (2010) found that task-oriented, pleasure-oriented, and familiarity-based trust are the factors influencing intention of use, Cheung, Chiu, and Lee (2011) made online survey to Facebook users aged from 19 to 23 to reveal that the biggest motive of using Facebook among them is social presence, self-discovery, maintaining personal relations, entertainment, and purposive value, Rau, Gao, and Ding (2008) reported that intimacy has been regarded as an indicator of interpersonal relationship which in turn affects use of SNS, and Kim (2011) examined motives of using Twitter and Facebook among various age groups of people from 20s to 50s, to find that entertainment pursuit is the biggest motive, followed by self-discovery, information acquisition, indirect experience, and intimacy in descending order. Moreover, several works have been devoted to the theme of SNS usage recently.…”