一种传播媒介要普及到5000万人,广播用了38年,电视用了13年,互联网只用了4年。微博的发展速度更是惊人,仅用了14个月。据《2010中国微博年度报告》显示,截至2010年10月,中国微博服务的访问用户规模已达12521.7万人。新浪微博用户数量已超过7000万。可以这么说,微博不仅成为中国公共生活的里程碑式的事件,也成为 One kind of media spreads to 50 million people, broadcasting for 38 years, television for 13 years and Internet for only 4 years. Weibo’s growth rate is even more alarming, only took 14 months. According to “2010 China Weibo Annual Report” shows that as of October 2010, the number of Chinese microblogging service users reached 125.217 million. Sina Weibo users has more than 70 million. It can be said that weibo has not only become a landmark event in public life in China but also becomes