CNN's John Defterios takes a look at how the world's most powerful companies make their money. He finds that it is not as easy as it seems for companies to make money from the Internet.
Defterio says it is more difficult to find out how much money is at stake. He says it can be difficult to determine how much a company has to pay in taxes to be considered a "vulnerable" company. But he says it's possible to find a way to make a profit if the company is not paying taxes.