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Taking risky opportunities in youthful content creation: Teenagers' use of social networking site for intimacy, privacy, and self-expression. New Media Society, 10(3), 393-411 [15] Portes, A.(1998). Social capital: Its origins and applications in modern sociology. Anmual Review of Sociology. 24, [16] Rains, S,& Brunner, S.(2015). What can we learn about social network sites by studying Facebook? A call and recommendations for research on social network sites. Neww media d sociery, 17(1), 114-131 [17] Siibak, A.(2010). Constructing masculinity on a social networking site: The case-study of visual self presentations of young men on the profile images of SNS Rate. Young, 18(4), 403-425 [18] Subrahmanyam, K,& Greenfield, P. (2008). Online communication and adolescent relationships. The Future ofchildren 18(D,119-146 [19] Takahashi, T. (2010). MySpace or Mixi? Japanese engagement with SNS in the global age. New media Society: 12(3). 453-475 0] Uski, S,& Lampinen, A.(2014). Social norms and self-presentation on social network sites: Profile work in action. New media society, July 17, 2014, doi: 10. 1177/1461444814543164. [21] Valkenburg, P. (2009). Social consequences or adolescents. Current Directions in Psychological Science, 1801). 1-5 [22] Velasquez, A. R.(2014). Youth collective activism through social media: The role of collective fficacy. New media society, first published on January 7, 2014, doi: 146144 [23] Walther, J B, Van Der Heide, B, Hamel, L,& Shulman, H.(2009). Self-generated versus other-generated statements and impressions in computer-mediated communication: A test of warranting theory using facebook. Communication Research, 36 (2), 229-253. [24] Zuniga, H, Jung, N,& Valenzuela, S.(2012). Social media use for news and individuals, social capital, civic engagement and political participation. Journal of Computer-mediated Communication, 17, 319-336 73 1994-2016ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net73 Warren, R. (2003). Parental mediation of preschool children's television viewing. Journal of Broadcasting & Electronic Media, 47(3), 394-417. Watson, A. (2013). Mobile phones and media use in Madang Province of Papua New Guinea. Pacific Journalism Review, 19(2), 156. Webster, J. G. (2005). Beneath the veneer of fragmentation: Television audience polarization in a multichannel world. Journal of Communication, 55(2), 366-382. Wei, L. (2012). Number matters: The multimodality of Internet use as an indicator of the digital inequalities. Journal of Computer-Mediated Communication, 17(3), 303-318. Whiting, G. C., & Stanfield, J. D. (1972). Mass media use and opportunity structure in rural Brazil. Public Opinion Quarterly, 36(1), 56-68. Yeykelis, L., Cummings, J. J., & Reeves, B. (2014). Multitasking on a single device: Arousal and the frequency, anticipation, and prediction of switching between media content on a computer. Journal of Communication, 64(1), 167- 192. Zhu, J. J., & He, Z. (2002). Diffusion, use and impact of the Internet in Hong Kong: A chain process model. Journal of Computer-Mediated Communication, 7(2). [65] [66] [67] [68] [69] [70] [71] Joiner, R., Gavin, J., Brosnan, M., Cromby, J., Gregory, H., Guiller, J., Maras, P., & Moon, A. (2013). Comparing First and Second Generation Digital Natives' internet use, Internet anxiety, and internet identification. Cyberpsychology, Behavior and Social networking, 16(7), 549-552. Kahne, J., & Middaugh, E. (2011). Youth online activity and exposure to diverse perspectives. New media & society, 14(3), 492-512. Kling, R. (2007). What is social informatics and why does it matter? The Information Society, 23, 205–220. Kraut, R., Patterson, M., Lundmark, V., Kiesler, S., & Mukopadhyay, T. (1998). The internet paradox: A social technology that reduces social involvement and psychological well-being? American Psychologist, 53(9), 1017–1031. Livingstone, S. (2008). Taking risky opportunities in youthful content creation: Teenagers’ use of social networking site for intimacy, privacy, and self-expression. New Media & Society, 10(3), 393–411. Portes, A. (1998). Social capital: Its origins and applications in modern sociology. Annual Review of Sociology, 24, 1–24. Rains, S., & Brunner, S. (2015). What can we learn about social network sites by studying Facebook? A call and recommendations for research on social network sites. New media & society, 17(1), 114-131. Siibak, A. (2010). Constructing masculinity on a social networking site: The case-study of visual self￾presentations of young men on the profile images of SNS Rate. Young, 18(4), 403-425. Subrahmanyam, K., & Greenfield, P. (2008). Online communication and adolescent relationships. The Future of Children, 18(1), 119–146. Takahashi, T. (2010). MySpace or Mixi? Japanese engagement with SNS in the global age. New media & Society, 12(3), 453-475. Uski, S., & Lampinen, A. (2014). Social norms and self-presentation on social network sites: Profile work in action. New media & society, July 17, 2014, doi: 10.1177/1461444814543164. Valkenburg, P.M., & Peter, J. (2009). Social consequences of the internet for adolescents. Current Directions in Psychological Science, 18(1), 1–5. Velasquez, A., & LaRose, R. (2014). Youth collective activism through social media: The role of collective efficacy. New media & society, first published on January 7, 2014, doi:1461444813518391. Walther, J.B., Van Der Heide, B., Hamel, L., & Shulman, H. (2009). Self-generated versus other-generated statements and impressions in computer-mediated communication: A test of warranting theory using facebook. Communication Research, 36(2), 229–253. Zuniga, H., Jung, N., & Valenzuela, S. (2012). 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