All of the hard work that Mark Zuckerberg and crew have put into Facebook takes a new shape this morning as the company goes public and he rings the opening bell on the Nasdaq Stock Market. The company is valued at $104 billion, and stocks are expected to trade at $38 per share, which is quite remarkable as they have now amassed over 900 million users. Facebook recorded a net income of $205 million in the first three months of 2012, on revenue of $1.06 billion. In all of 2011, it earned $1 billion, up from $606 million a year earlier. That’s a far cry from 2007, when it posted a net loss of $138 million and revenue of $153 million.