3Jose van DUck. Users like you? Theorizing agency in user- generated content. Media,Culture & Society, Vol. 31, No. 1.(January 2009), pp. 41-58.
4Tow Center For Digital Journalism. Amateur Footage: A Global Study of User-Generated Content. 3 December 2014. http:// towcenter.org/research/amateur-footage-a-global-study-of- user-generated-content/.
5Lev Grossman. You - Yes, You - Are TIME' s Person oF the Year. Time, 25 December 2006, http://content.time.com/time/ magazine/ artide/0.9171,15 70810,00.html.
6Jin Kim. "User-generated content (UGC) revolution?: Critique of the promise of" YouTube." PhD thesis, University of lowa, 2010. http://ir.uiowa.edu/etd/529.
7Jin Kim. The institutionalization of YouTube: From user-generated content to professionally generated content. Media, Culture & Society, Vol. 34, No. 1.(January 2012), pp. 53-67.