7Vickery G, Wunsch-Vineent S. Participative Web and User-Created Content : Web 2.0, Wikis and Social Networking. Paris : OCDE Publishing, 2007 : 1- 124.
8Jessica D. Meet Generation C: creatively connecting through content. EContent, 2007, 30(4):38-43.
9Chudnov D. Social software: you are an access point. Computers in Libraries, 2007, 27(8) :41 -43.
10Karahasanovi A, Brandtzag P B, Helm J, et al. Co-creation and user-generated content-elderly people' s user requirements. Computers in Human Behavior,2008 (10) :655 - 678.