NEXT week's much-anticipated Initial Public Offering (IPO) of social networking giant Facebook has caused all kinds of speculation about its value.
Predictions have put the company's value at anywhere from between $US75 to $100 billion.
Whatever end of that scale it is, Facebook's emergence on the US stock market will make some smart kids very rich, and some rich people much richer. Our look at the social network's big players reveals how the right connection at the right time can make you a billionaire.
At the centre of Facebook's 800 million friends is a tightly connected core network of former and future co-workers, mentors, and benefactors.
There are veteran investors, whiz kids and their outmanoeuvred former friends, hardened executives and even rockstar artists, but they all have one thing in common - a very nice boost to the bank balance headed their way, courtesy of the social network.
See who's making how much from the IPO with our special interactive below, then keep reading to explore the Insider Network. (Interactive will not appear on some mobile devices)
We start where Facebook started - Harvard University and Mark Zuckerberg.