7Buskirk E V. Gaming the system:How marketers rig the social media machine [ EB/ OL ]. (2010-07-07). http: //www. wired, com/epicenter/2010/07/gam- ingthe- system- how- marketers- rig- the- social- media- machine.
8Neuman W L. Social research methods:Qualitative and quantitative approaches [ M ]. 5 th ed. Boston: Allyn & Bacon Press ,2002:79.
9Riemer K, Richter A. Tweet inside : Microblogging in a corporate context [ C ] ///23rd Bled eConference. Slovenia : AISeL, 2010 : 1-17.