Mark Zuckerberg
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Facebook set for stock market flotation in United States

Social media giant Facebook is preparing to offer itself for stock market flotation in the United States, with a valuation that is expected to be about £60bn.

Since its creation, Facebook has amassed 800 million members and has been the subject of a Hollywood film. But the question remains, will it be a good stockmarket investment?

Rory Cellan-Jones reports.