Renewed vigour

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Despite raising a whopping $16 billion, Facebook hasn't fared well since its market debut - as of May 17, Facebook shares were down 31 per cent compared to the IPO price. Two business-software companies - Marketo and Tableau - went public last week. There could be more, with strong rumblings of potential IPOs through the next year from consumer tech players such as Twitter, Square, Dropbox and Box