With the much-hyped Facebook initial public offering (IPO) on Friday hardly bringing everyday life to a standstill, and the company ending its first day of trading with only 23 cents more than its opening price, Silicon Valley venture capitalists and other experts had quite a lot to say about the Facebook's Wall Street debut.

In the opinion of Hearsay Social Clara Shih, who is the author of "The Facebook Era", Friday, May 18 - the Facebook IPO day - was "an exciting day for Silicon Valley." Shih said that the fact that the popular social network is now a publicly traded company will "cause the Fortune 500 to take social seriously and begin investing in a very real way."

Venture capitalist Mark Siegel of Menlo Ventures said that it was a good thing that Facebook's Wall Street debut "wasn't a big pop"; and added that if Facebook had traded up 50 percent, the expectations would have become as much higher with regard to the revenues which the social network would need to deliver so as to keep the investors happy.

Talking about Facebook's viability in terms of an investment option, Siegel said that the company's "very fully valued" stock would witness `a bumpy ride' in the short-term, with there being quite a few ups and downs.

Meanwhile, according to Lise Buyer of Class V Group, no matter what kind of `Day One' Facebook IPO witnessed, the more important issue finally is "how much money Facebook raised and at what valuation."