LinkedIn: LinkedIn is a business specific social networking site and is unique from others in the fact that it focuses more on the corporate segment of the social network population.

LinkedIn： LinkedIn是特定于业务的社会网站，具有不同于其他功能的独特功能，它更侧重于公司领域的社会网络群体。

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Facebook is the coolest social network and it can help you promote your business and get lots of traffic to your site.

Facebook是最酷的社会网络，它可以帮助您宣传您的公司并获得大量的流量到您的网站。

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On Wednesday, she will be joined by the Duke of York in east London to visit the offices of creative agency Mother and business social network site Yammer.

BBC: Queen to resume official engagements after illness

LinkedIn has taken its time to achieve stellar status but as comScore pointed out this week the business network site reached the number 2 spot for social networks in the USA in June (as measured by unique visitors), overtaking former social network darling, MySpace.

FORBES: Why LinkedIn Deserves to be The Number 1 Social Network