Yahoo! Finance to stream LIVE coverage of the Facebook IPO Friday starting at 10:30 am. WATCH IT LIVE HERE!

Demand for Facebook (FB) shares is heating up ahead of its initial public offering, which is expected to take place Friday. The company announced Wednesday it is offering 25 percent more shares for investors to purchase. Facebook is now set to sell 421.3 million shares, up from 337.4 million, at a price target of $34 to $38 a share. Facebook's IPO could ultimately lead to a valuation of more than $100 billion.

But as investors clamor to own a part of the hottest tech company since Google (GOOG), there are some dark clouds surrounding the company. Two big ones include ad sales and privacy concerns for users.

Facebook Road Block: Privacy

The vast majority of Facebook users don't trust it. While Facebook's growth has exploded to more than 900 million users worldwide, 59 percent of users have little to no trust in the company to keep their information private, according a recent

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Americans have a lot of questions about the housing market. Has the housing market bottomed? When will home prices start rising? Should I buy or rent? Jack Otter, executive producer of CBS MoneyWatch, explores some of these questions in his new book "Worth It…Not Worth It?" The real estate market presents a conundrum for many Americans looking to sell their homes or become a first-time homeowner. A recent study by The Demand Institute, a division of the Conference Board, found that many Americans, despite having been financially hurt from the housing market crash, still have a strong desire to buy a home. The survey revealed that more than 80 percent of Americans thought buying a home remained the best long-term investment they could make -- even though home prices in February were near October 2002 lows. In an interview with The Daily Ticker, Otter lists the common scenarios facing homeowners and gives his smartest recommendations.

Buying versus

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Earlier this month, Harvard Professor Martin Feldstein generated some headlines after declaring on Bloomberg TV "that this is a bubble in the stock market created by low long-term interest rates that the Fed has engineered."

Two weeks later, "a lot of air has come out of the stock market" and Feldstein sees more 'deflation' ahead for one main reason: The Fed is unlikely to do another round of quantitative easing.

While two rounds of QE and Operation Twist have had the desired result -- lower bond yields and a revival of equity prices -- the Fed's actions are "not really moving actual economic activity," Feldstein notes. "Having tried it twice and not succeeded, it's not clear there's any reason for them to do it again."

The former head of Ronald Reagan's Council of Economic Advisers says Ben Bernanke is right that the onus is on fiscal policymakers now. While he wishes otherwise, Feldstein has little faith Congress will tackle the looming 'fiscal