目前,包括中国、美国、韩国在内的很多国家都出现了互联网广告的持续增长态势。其中,2011年的中国互联网广告市场在整个广告市场中的占比将会达到21.1%,而美国则是17.7%(见图一)。中国是人口大国,网民人数约有4.2亿。其中,移动互联网广告和社会化媒体广告的增长力异常强劲。广告主为什么会偏爱社会化媒体和移动互联网媒体 At present, many countries, including China, the United States and South Korea, have seen the continuous growth of Internet advertising. Among them, the Chinese Internet advertising market in 2011 will account for 21.1% of the total advertising market, while the United States will be 17.7% (see Figure 1). China is a populous country with about 420 million netizens. Among them, the growth momentum of mobile Internet advertising and social media advertising is unusually strong. Why advertisers prefer social media and mobile Internet media