The heads of the top US companies might be engaged in the boardroom, but they're switched off when it comes to social media, according to a new study that said CEOs should be more connected to their customers.

Research conducted by the blog UberCEO.com looked at Fortune's 2009 list of the top 100 CEOs to determine how many were using Facebook, Twitter, LinkedIn, Wikipedia, or had a blog - and found they were mostly absent from the rapidly growing social media community.

The study found only two CEOs had Twitter accounts and 81 percent of CEOs did not have a personal Facebook page.

Only 13 CEOs had profiles on the professional networking site LinkedIn. Three CEOs stood out with more than 80 connections but they were all from technology companies - Michael Dell from computer maker¹ Dell Inc., Gregory Spierkel from technology products distributor Ingram Micro Inc., and John Chambers² from Cisco Systems Ltd.

Three quarters of the CEOs did have some kind of Wikipedia entry, but nearly a third of those had limited or outdated³ information such as incorrect titles, or lacked sources.

Not one Fortune 100 CEO had a blog.

"It's shocking that the top CEOs can appear to be so disconnected from the way their own customers are communicating. They're giving the impression that they're disconnected, disengaged and disinterested," said Sharon Barclay, editor at UberCEO.com who runs executive⁴ PR firm Blue Trumpet⁵ Group.

Social networking sites are booming⁶, with the latest figures by Nielsen Online showing the number of minutes spent on them in the United Sates doubling over the past year.

据一份最新调查显示：美国大公司的老板们可能在董事会会议室里忙得不可开交，但在利用社交网站方面，他们的表现就比较迟钝。

博客网站www.uberceo.com调查了排在2009年福布斯财富排行榜前100位的公司首席执行官，统计其中有多少人使用Facebook、Twitter、LinkedIn、Wikipedia或写blog。调查结果显示，大多数CEO没有加入快速发展的网络社交平台。

只有两位CEO有Twitter账户，81%的CEO没有个人Facebook页面。

只有13名CEO在职业社交网站LinkedIn上有个人页面。三个CEO有80多个联络者，但这三位全部来自技术公司，他们是戴尔公司的迈克尔·戴尔，技术产品分销商英迈国际CEO格雷戈里·史必可，以及思科集团的约翰·钱伯斯。

四分之三的CEO在维基百科上有自己的词条，但是近三分之一的词条里信息不完善或者过时，比如职位错误，缺少出处等等。

这100位CEO中没有一个人有个人博客。

UberCEO网站的编辑、Blue Trumpet Group 公关公司负责人莎伦·巴克利说：“这些顶级公司的CEO对他们的客户正在广泛使用的交流方式如此冷漠，这令人震惊。他们给人的感觉是不联系、不参与、也不感兴趣。”

社交网站正迅速发展。调查公司Nielsen Online的最新数据显示，去年美国人在社交网站逗留的时间翻了一番。