Facebook boasts that it is free to join and always will be so where's the money coming from to services 1 billion subscribers? Just like it's fellow tech titan and rival Google,Facebook 's revenue comes almost entirely from advertising. Facebook does not have a diverse array of hot new gadgets a countrywide network of brick-and-mortar retail outlets or a full inventory of software for sale;instead it has your personal information and the information of hundreds of millions of other with Facebook accounts