There is a whole lot of information in Facebook's filing for its initial public offering last week. Some of it was fairly on par with what people expected while other parts of the filing threw the business/technology community for a loop.
Here are 10 surprises to come out of the Facebook filing:
1. How many users? Facebook now has 845 million users -- 45 million more than the company reported in September -- and 483 million daily active users. Those users generate 2.7 billion daily likes and comments, many of which are about the 250 million photos uploaded each day.
2. How many relationships? Facebook has a stunning 100 billion relationships on its site -- one for every dollar of the highest estimate of its valuation.
3. How much are they making? The company brought in $3.7 billion in revenue last year and $1 billion in profit. Another interesting thing to note: Based on Facebook's own revenue and user data, every monthly user on the site is worth about $4.62.
4. Zuckerberg's security detail: Founder Mark Zuckerberg has a "comprehensive security program" that covers security personnel and the installation of a security system at his home. The security costs are included in his overall compensation.
5. Plans for global domination: Facebook is casting a hungry eye overseas, and more and more of its revenue is coming from non-domestic sources. Facebook is available in 70 languages and is looking closely at Brazil, India and China. China, as The Washington Post recently reported, presents its own set of complications, but could help the company get the growth it's looking for. The company is also looking to make further inroads into countries such as Russia and Japan where Facebook faces stiffer social networking competition.
6. Growth: The days of Facebook's fastest growth -- at least in the United States -- appear to be behind it. U.S. user growth trails the rest of the world, likely because the company has already penetrated such a high percentage of the American market.
7. Mobile: A big surprise in Facebook's filing was that the company appears to have a problem with mobile. The company doesn't have display ads on its mobile products now, and said that it worries the trend toward mobile could really hurt its bottom line. If the company can find a clever, nonintrusive way to use all of its data for mobile marketing, it will be a huge deal. But control over the ads is a problem -- Facebook doesn't have its own phone, carrier or operating system, any of which could affect how the company is allowed to display ads.
8. Sheryl Sandberg: Losing chief operating officer Sheryl Sandberg was listed as a risk factor in the IPO paperwork, a surprising if not shocking mention for the former Google executive who's become a very important part of the social network. There's been speculation that Sandberg, who has a background as a Washington insider, may consider going into politics.
9. Zuckerberg's succession plan: In a provision that prompted a lot of royalty jokes on the Web, the S-1 filing revealed that Zuckerberg will be able to appoint someone to take over his controlling shares. From the filing: "In the event that Mr. Zuckerberg controls our company at the time of his death, control may be transferred to a person or entity that he designates as his successor. As a board member and officer, Mr. Zuckerberg owes a fiduciary duty to our stockholders and must act in good faith in a manner he reasonably believes to be in the best interests of our stockholders."
10. Zynga, Zynga, Zynga: Facebook revealed that its partnership with the social network games developer Zynga accounts for 12 percent of its total revenue -- a very surprising amount for a single company. That's around $445 million of the company's 2011 revenues. The money comes from the cut that Facebook receives through Zynga's in-game purchases and advertising.