Social networking site Facebook is likely to postpone a flotation on the US stock exchange until 2012.
Analysts had been expecting a stock-market debut next year, but some reports suggest Facebook had decided to hold off for a while.
The site, which is facing ongoing criticism about privacy concerns, is thought to be wooing more users and improving software ahead of the float.
Facebook has more than 500 million users and is valued at $US24 billion.
