Facebook's IPO filing is reportedly imminent -- and rumors are swirling about how much the social network led by Mark Zuckerberg is is worth.
NEW YORK (CNNMoney) -- A long list of tech IPOs captured attention in 2011, but no company has been drooled over like Facebook. And finally, its debut looks to be imminent.
The Wall Street Journal reported Friday that Facebook may file for an initial public offering as early as this Wednesday. It's still not certain if Facebook will actually file this week.
But that hasn't stopped people from speculating about how much Facebook might be worth.
Some experts have suggested that the social network could be worth anywhere between $75 billion and $100 billion once it starts trading. No matter what the valuation Facebook's IPO is undeniably hot, says Max Wolff, chief economist at GreenCrest Capital.
He expects Facebook will be valued at $85 billion to $100 billion, and that the company will sell about 8.5% to 10% of its available shares in the offering. Based on those estimates, Facebook would raise between $7.2 billion and $10 billion from the sale of its stock.
But there's a lot more riding on Facebook's paperwork than wealth creation. The social network has become an entire ecosystem, supporting independent app makers and gaming platforms like Zynga ().
Facebook's filing will have implications for companies that depend on it, as well as the social media landscape at large. Until then, analysts are left to speculate about Facebook's revenue streams and profitability -- and whether it really deserves a $100 billion market value.
Michael Pachter, a research analyst at Wedbush Securities, says the rumored valuation range is reasonable -- though he won't cite a specific estimate of his own.
How Facebook makes money -- and could make more: The vast majority of Facebook's revenue comes from advertising: a combination of search and display ads. And the sales growth is incredibly robust.
Research firm eMarketer estimated last September that Facebook's ad revenue would more than double in 2011 to $3.8 billion and increase another 52% to $5.78 billion in 2012.
Facebook has grown by grabbing market share from Google and Yahoo. Last year Facebook comprised 16.3% of the so-called display (i.e. banners and other graphical ads) market, eMarketer estimates -- compared with Yahoo's (Fortune 500) 13.1% and Google's ( , Fortune 500) 9.3%.,
Martin Pyykkonen, analyst at Wedge Partners, says Facebook is highly appealing to advertisers because about two-thirds of its users fall into the coveted age demographic of 18-49. He thinks Facebook's ad targeting will become even more effective over time.
"The 'Like' button option is a basic example of targeting," Pyykkonen wrote in a note to clients Monday. "[It's] likely that advertisers will be able to even better target their audiences as Facebook goes deeper with integrating apps, games, movies, music."
Facebook's other revenue stream is its payment system for purchases within apps and games: Facebook Credits. Facebook keeps 30% of the revenue from those payments, and passes the remaining 70% on to the app developer.
Facebook Credits now comprises 10% of the company's total revenue, up from 5% in early 2010, Pyykkonen estimates.
Those estimates will soon be backed up -- or refuted -- by hard numbers from Facebook. Once its IPO filing does finally land, it will help answer questions about the overall social media market.
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