Facebook Inc. will probably put off its initial public offering until 2012, giving Chief Executive Officer Mark Zuckerberg more time to gain users and boost sales, three people familiar with the matter said. Facebook would benefit from another year of growth absent the added scrutiny that comes with a public listing, instead of holding an IPO in 2011 as investors speculated, said the people, who asked not to be identified because Facebook doesn’t discuss share-sale plans. Still, Zuckerberg, who holds board control, could push for a stock sale at any time, they said. Waiting lets Zuckerberg, 26, hone the skills needed to steer a company that issues quarterly results while facing criticism on such matters as user privacy. Facebook, valued at $24.9 billion, would use the time to propel its user base beyond the 500 million mark reached this month and add to sales that two of the people said may double to at least $1.4 billion in 2010 from $700 million to $800 million last year. – from Bloomberg