Facebook’s initial public offering this Friday set off frenzied anticipation among Main Street and Wall Street investors desperate to get their hands on the stock.

The social network overnight raised its price range to $US34 to $US38 a share, resulting in a target valuation of up to $US104 billion ($104.28bn), which would make it the most highly valued IPO for a US company.

In a related development, Apple co-founder Steve Wozniak has warned Mark Zuckerberg about the dangers of going public as Facebook counts down to its eagerly awaited share offering.

“All of a sudden you have shareholders that are directing the company and demanding answers and getting upset if things aren’t going as well as they hoped,” he said, speaking to the Australian Financial Review on Tuesday.

According to Wozniak, once Facebook go post-IPO, Zuckerberg can be more at the mercy of the owners.

“That is something to worry about and something they have to watch out for, but I think he has got a strong enough focus to continue on as he has been going, and I really hope it goes well for them”, he added.

Facebook’s inital $5 billion IPO filing sets the stage for a May market of the world’s largest social network. According to IFR , a coming-out party that will dwarf almost any before that, including Google Inc’s $2 billion IPO.

As at May 2012, the social network boasts 901 million active users.