求翻译：一项调查显示，我国网民将大部分时间花在了使用社交网站上，然而围绕着社交网络的广告购买却还不到10%。目前品牌广告主仍然将大部分预算放在了门户或是网站上，到底是什么阻碍了他们？市场研究机构GroupM的首席执行官贝西认为，“社交媒体需要一种全新的价值衡量体系。”这正是社交网络平台们正在开发的另一项企业增值服务，数据挖掘与分析工具。是什么意思？

正在翻译，请等待...

The survey shows that our people will most of the time spent on the social networking sites, however, around the social network of the advertising purchase, less than 10 per cent. The brand advertising is still the majority of the budget on the Portal or the video on the web site, what is the obstac

正在翻译，请等待...

A survey showed that Chinese Internet users spend most of their time in the use of social networking sites, but around the social network's ad-buying was less than 10%. Currently brand advertisers still put most of the budget in a portal or video on the site, what's stopping them? Market research fi

正在翻译，请等待...