Common Sense: Sites Like Groupon and Facebook Disappoint Investors

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Source: www.nytimes.com --- Friday, August 17, 2012
The more users a social network site like Facebook attracts, the more others will want to use it. But a site?s audience can decline just as quickly as it grows. ...

Source: http://feeds.nytimes.com/click.phdo?i=bc2eec6458766e7cd4db02bfc62225ee

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