Let the speculation about what Facebook is worth begin again.

The WSJ is reporting tonight that Facebook is inching closer to an IPO that it hopes will value the company at more than $100 billion. And the social networking firm is now targeting a time frame of April to June 2012.

Here's a look at reactions from around the Web:

Can Facebook pull off a $100 billion IPO? Wired's John C. Abell is skeptical. 'In recent private-market trading on SharesPost the company had an implied value of about $82 billion, off its historical highs but still at a very rarified level...But $100 billion is a big number. Google's IPO market cap, the modern internet benchmark, was $23 billion when IT? was first publicly-traded on August 19, 2004. Netscape, the company which defined the pre-bust dot-com boom, was valued at a mere $2.9 billion (more than $4 billion in today dollars) when it went public on Aug. 9, 1995.'

It's a matter of when, not if: Over at GigaOM, Colleen Taylor writes: 'As much as people may worry about what Facebook will become once it's under the microscope of public market investors, a big IPO like the one it is said to be planning is practically a given for a company that's raised more than $2.3 billion from investors. Its price is just too high for the majority of potential acquirers out there. Now, I still say that it's in the realm of possibility that Microsoft could make Facebook an offer it can't refuse; but chances are, the Facebook IPO buzz will become a reality at some point soon.'

Who needs bankers? Deal Journal colleague Scott Austin points to one interesting aspect of the story: Facebook has already drawn up the IPO docs without the help of bankers and lawyers. According to the WSJ story, Facebook remains elusive about a commitment to specific banks, even though an IPO looms. Its CFO has told some bankers that he is skeptical over what contributioninvestment banks could make to a Facebook IPO?. So Facebook 'may go the unusual route of telling the Wall Street establishment to buzz off, kind of like what Google did in its IPO when it rankled bankers with a Dutch auction that cut out a chunk of the banker fees,' writes Austin.

How much will Mark Zuckerberg be worth if Facebook is valued at $100 billion? According to Deal Journal colleague Geoffrey A. Fowler, the answer is $24 billion. That would place him behind Microsoft's Bill Gates and Oracle's Larry Ellison, but ahead of Google co-founders Larry Page and Sergey Brin, according to estimates of their wealth. Others that stand to do quite well in a Facebook IPO: 'Co-founder Dustin Moskovitz (who is no longer with the company) owns 6% while spurned co-founder Eduardo Saverin (also no longer with the company) owns 5%. Early executive Sean Parker owns 4%, he said, while early investor Peter Thiel owns 3%,' Fowler writes.

Where would a $100 billionvaluation rank Facebook among other tech companies? Ahead of Cisco, Amazon and Disney; behind Intel and about half of Microsoft and Google, writes Larry Dignam over at ZDNet.