It's not the same thing though. The anti-competetive behavior of a company in the telecommunications industry is grounded (literally) in the natural barrier to

It's not the same thing though. The anti-competetive behavior of a company in the telecommunications industry is grounded (literally) in the natural barrier to entry that comes with the immense investment and government authorization involved in land based infrastructure. These are necessary 'practical' monopolies that are purposely created by the state in order to regulate them as public utilizes and because it is impractical to allow multiple overlapping land infrastructures. Facebook does not fall anywhere close to this category of communications network. There is no barrier to entry created by Facebook's existence. Multiple other social networks can and do exist, and not only that but you can simultaneously participate in all of them. They are not mutually exclusive. Facebook is not a monopoly, it's just really popular. Finally, Facebook is not a monopoly for the very simple reason that you are not a customer of Facebook. Facebook does not provide you any service that you have paid for in an economic exchange. Facebook's customers are advertisers, and the advertisement industry is anything but a monopoly.