After setting up free networking profiles on Facebook, Twitter and LinkedIn, an Internet user can instantly access the largest repository of information mankind has ever compiled at no cost - through Google. And the Internet is a bargain hunter's dream. The paradox is that, while a great number of Internet services come gratis, the companies that provide these services are turning huge profits.
This interactive graphic describes how popular Internet companies earn revenue. It also reveals which companies are profitable and which are not.
