censorshipt filtering 1 (teen ager) 1217 18 2011 2 95% 3 (SNS) 4 5 1 URL URL URL 2 Pew Internet & American Life Project Trend Data (Teen)http://pewinternet.org/Static-Pages/Trend-Data-(Teens)/Whos-Online.aspx 2013 15 3 Facebook 4 You Tube 5 Wall Street Journal When Curious Parents Want to See Math Grade in Real Time http://online.wsj.com/article/sb10000872396390444592404578032360255233782.html 2013 15 4

6 7 8 Pew Research Center 2012 2,462 9 94 75 YouTube 52 42 Spark Notes, Cliff Notes 41 25 18 EBSCO, JSTOR,Grolier 17 6 2011 SCHOOL LIBRARY MONTHLY/VOLUME XXVII, NUMBER 7/APRIL 2011http://www.schoollibrarymonthly.com/articles/Corbett2011-v27n7p5.html 2013 15 7 Pew Internet & American Life Project10 How Teens Do research in the Digital World http://www.pewinternet.org/reports/2012/student-research/summary-of-findings/overview.aspx 2013 15 8 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 9 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 5

16 12 Sweet Search 10 2012 Pew Research Institute, Internet & American Life Project,Pew Research Institute, Internet & American Life Project 83% 10 95 79 75 2012 Pew Research Institute, Internet & American Life Project PC 11 72 66 55 2012 Pew Research Institute, Internet & American Life Project 10 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 11 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 6

12 97 32 97 21 (AUP Acceptable Use Policies) 97 16 2012 Pew Research Institute, Internet & American Life Project 43(poor)35%(fair) 13 80 12 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 13 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 7

71 57 35 2012 Pew Research Institute, Internet & American Life Project 47 44 87 14 15 16 2000 the Children s Online Privacy Protection ActCOPPA 13 14 Pew Internet & American Life Project Summary of Findings http://www.pewinternet.org/reports/2012/student-research/summary-of-findings.aspx 2013 15 15 Greenfield, Patricia, and Zheng Yan. "Children, adolescents, and the Internet: A new field of inquiry in developmental psychology." Developmental psychology 42.3 (2006): 391. 16 Pariser, Eli. The Filter Bubble: What the Internet is Hiding from you. The Penguin Press, New York, 2011 8

17 Facebook 13 13 13 18 10 (cyber bulling) 2008 50 90 (Federal Communication Commission FCC) 1217 93% (2011 95%) 17 Children's Online Privacy Protection Act: COPPA http://www.coppa.org/coppa.htm 2013 15 18 The Berkman Center for Internet & Society at Harvard University New Paper: Why parents help their children lie to Facebook about age: Unintended consequences of the COPPA http://cyber.law.harvard.edu/node/7199 2013 15 9

19 2009 Pew Internet, 2010 Social Media and Young Adult 20002009 20 2009 12 Pew Internet, 2010 Social Media and Young Adult 19 Pew Internet & American Life Project Part 1: Internet adoption and trends http://pewinternet.org/reports/2010/social-media-and-young-adults/part-1/demographics.aspx 2013 15 20 2011 SCHOOL LIBRARY MONTHLY/VOLUME XXVII, NUMBER 7/APRIL 2011 10

2011 799 1217 ( 95%) 97% 88% 2011 21 95 96 95 97 95 88 1213 92 1417 97 30,000 93 30,00049,999 91 50,00074,999 96 75,000 99 Pew Internet & American Life Project, Who s Online 1217 799 21 Pew Internet & American Life Project Trend Data (Teen) http://pewinternet.org/static-pages/trend-data-(teens)/whos-online.aspx 2013 15 11

2011 22 77 2011 7 PC 74 2011 7 ipod, MP3 79 2009 9 80 2009 9 51 2009 9 Pew Research Institute, Internet & American Life Project,Parent/Teen Teen Gadget Ownership (teens) 23 DSL 2009 24 Pew Internet & American Life Project, Internet Access 22 Pew Internet & American Life Project Trend Data (Teen)http://pewinternet.org/Trend-Data-(Teens)/Teen-Gadget-Ownership.aspx 2013 15 23 teen 12 17 24 Pew Internet & American Life Project Trend Data (Teen)http://pewinternet.org/Trend-Data-(Teens)/Internet-Access.aspx 2013 15 12

12 17 (teens) 95% MySpace Facebook SNS80 6248 2009 2011 25 % Gaia, Second Life 8 2009 MySpace Facebook SNS 80 2011 11 Twitter 16 2011 21 2009 13 2011 38 2009 27 2011 31 2009 17 2009 Skype,GoogletalkiChat 37 2011 62 2009 14 2009 48 2009 Pew Internet & American Life Project: Online-Activites 25 Pew Internet & American Life Project Trend Data (Teen)http://pewinternet.org/Trend-Data-(Teens)/Online-Activites-Total.aspx 2013 15 13

Facebook MySpace 2006 2008 76 52 20062008 26 Pew Internet & American Life Project: Online-Activites 26 Pew Internet & American Life Project Trend Data (Teen)http://pewinternet.org/Trend-Data-(Teens)/Online-Activites-Total.aspx 2013 15 14