As expected yesterday, Google filed for an initial public offering (IPO) with US regulators yesterday.

The company hopes to raise over $2 billion from sale of its stock. The unique nature of the company has attracted wide attention from investors and the media, who hope the move will boost stocks across the tech sector.

"The Google filing is certainly good news for the technology sector because it demonstrates the impressive growth for which technology companies generally have the potential. However, Google's IPO is not driving a revival of the technology sector; that revival is already well under way," wrote Jonathan Silver, managing director of Core Capital Partners.

If Google's IPO is as successful as many analysts predict, it could serve as a public statement that would entice investors back to the technology sector and make it easier for other, less well-known companies to follow suit, said Tom Taulli, a finance professor at the University of Southern California.

"I think the Google IPO will have a positive impact overall on IPOs," Taulli said. "Does it mean a huge surge in the volume of public offerings? I don't think so, but I do think it will lift all boats."

Google warned investors on what to expect from the IPO: "Google is not a conventional company. We do not intend to become one," co-founders Larry Page and Sergey Brin wrote in an open letter included in the IPO filing.

In an interesting twist, the company plans to sell its stock in a public auction – enabling ordinary investors to sidestep the large brokers who customarily seize the lion's share of stock on its initial offering.

Morgan Stanley and Credit Suisse First Boston are managing the IPO. Stock will not go on sale for several months.