He joined Twitter and other business networking sites.

他加入了Twitter和其他一些商业社交网络站点。

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There may be a specific networking site comprised of a community with specific interests and producers can target these sites with their consumables on a business angle.

可能存在一些特别的网络站点，其中包含具有特定关注点的社区，产品制造商可以从业务的角度出发，将这些站点作为推销其产品的目标。

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The insurance company More Than recently carried out a survey of 50 former burglars, which revealed that monitoring social networking sites is now big business for criminals.

这家保险公司最近对50名有盗窃前科的人进行调查，他们披露，如今监视社交网站的一举一动成为很多罪犯的首选。

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With many small business owners saying sales are down in a recent survey by the National Small Business Association, strategic use of social networking sites seems like a good way for many to pull in new business from customers they may not know are out there.

FORBES: Social Networking Sites: Time Suck or Killer Marketing Tool?

Manpower is acutely aware of the threat to this business posed by online social-networking sites.

ECONOMIST: Manpower

Social networking sites are increasingly being flooded by those with business interests.

FORBES: Your credit card is a window to your soul