2Kaplan A M, Haenlein M. The Early Bird Catches the News: Nine Things You Should Know about Micro-blogging[ J]. Busi- ness Horizons, 2010,20 (october) : 1-9.
5Gaonkar S, Choudhury R R. Micro- blog: Map- casting From Mobile Phones to Virtual Sensor Maps[ Z]. 2007.
6Krishnamurthy B, Gill P, Arlitt M. A Few Chirps about Twit- ter: WOSN '08, Seattle, Washington, USA, 2010 [ C ]. August 18, 2008.
7Java A, Song X, Finin T, et al. Why We Twitter Understanding Microblogging Usage and Communities: Proceedings of the 9th WebKDD and 1 st SNA-KDD 2007 Workshop on Web Mining and Social Network Analysis, San Jose, California, USA, 2007.
8Cheong M. What are You Tweeting about: A Survey of Trending Topics about Twitter[ EB/OL ]. [ 2011-02-18 ]. http ://citese- erx. ist. psu. edu/viewdoc/download? doi = 10. 1. 1. 158. 4679&rep = rep18Xype = pdf.
9Smith B G. Socially Distributing Public Relations: Twitter, Haiti, and Interactivity in Social Media [ J ]. Public Relations Review, 2010,36(4) :329-335.
10Horn C, Analysis and Classification of Twitter Messages [ D ]. Graz University of Technology,2010.
