A birth date and an email address are all it takes to become one of Facebook’s estimated 800 million minions, but it will take a heck of a lot more than that to own even a single share of the social media giant. According to the SEC filing, Facebook will offer for public sale 337 million Class A shares. The math is pretty simple – there’s not enough shares to go around assuming, of course, that every Facebook user would want to own a piece of it. Read more