New York : The Facebook filing is enormous, and impressive.
Two years ago?  $777 million in revenues.  The next year?  That number practically tripled.  Then, doubled again for 2011.  Strong revenue numbers from a company some used to doubt could ever actually make money. 

Facebook Application Development

But Facebook's filing shows that this company, perhaps more than any other in Silicon Valley, is important to the tech ecosystem in a way that mere numbers can't show.  For example, its relationship to Zynga.  The social gamer has struggled with its own post-IPO stock price.  That is, until Facebook revealed how much of its revenues come from Zynga.  Cue the rapid buying of Zynga stock.  Thanks, Facebook.