Zuckerberg about to get very, very rich.
Microsoft is poised to buy a five per cent stake in social networking site Facebook, according to The Wall Street Journal.
The report said that the software giant will pay between US$300m (AUD$343m) and US$500m (AUD$571) for the stake.
If the figures are accurate it would value Facebook at up to US$10bn (AUD$11.43bn) and make its founder Mark Zuckerberg a billionaire.
"It would probably be pretty good for Microsoft since it has not had the best success in creating really hip, young-people-grabbing stuff on the web," Kim Caughey, a senior analyst at Fox Pitt Capital, told The Guardian.
The figure is a step up from analyst predictions last month that Facebook was worth around US$6bn (AUD$6.86bn). The company had a turnover of US$150m (AUD$171.56m) last year, with profits of US$30m (AUD$34.3m).
However, Facebook has several hurdles to overcome, not least the decision of a court as to who actually owns it.
A legal battle is currently underway between Zuckerberg and former college friends about who had the original idea for the site.
The company is also being investigated by the New York Attorney General over allegations that it does not protect its users against sexual predators.