Facebook is poised to transform an array of businesses including news, movies and music but it is nowhere near issuing stock, its celebrity co-founder said.

“Don’t hold your breath,” Mark Zuckerberg quipped when prodded during an on-stage chat at a Web 2.0 Summit about when privately-held Facebook would have an initial public offering of stock.

Mr Zuckerberg said that he and his relatively small team of about 300 engineers is busy building Facebook into a hub for the kind of online social sharing that promises to infuse and transform all types of industries.

“Over the next five years, most industries are going to be rethought and designed around people,” Mr Zuckerberg said. “A social version of anything can almost always be more engaging and outperform a non-social version.”

The game industry was the first to “tip” as shown by the impressive success of Zynga, he continued.

More than 320 million people have played Zynga online social games such as FarmVille and Mafia Wars since the company was founded in San Francisco in 2007, according to start-up founder Mark Pincus.

Mr Zuckerberg predicted the shift to social dynamics would spread to and transform music, movies, news and other industries in which people share information.

Facebook wants to provide a platform on which software wizards and entrepreneurs can build products and services, leaving it to them to reshape the ways business is done or entertainment consumed.

“We should play a role in helping to transform those industries,” Mr Zuckerberg said. “Anything that doesn’t have to be built by us, we would rather not be built by us.”