But according to one social media marketing company, around twenty percent of users aren't fully under the control of Facebook themselves.
uSocial.net - the company who recently began selling Facebook friends and fans to businesses - claim they influence one-fifth of Facebook users with the system they use to sell their service.
"With the method we use, we can reach over sixty million Facebook users at any one given time," says uSocial CEO Leon Hill.
"This number is growing all the time as we increase our reach, but at this time it accounts to a large portion of Facebook which we currently can contact on behalf of our clients."
The company say they reach such a large volume of users because of partnerships they have with many prominent figures on Facebook, some who have fan bases in the millions.
"When a client wants us to get fans to their own page, we promote them through our partner's pages," said Hill.
"This drives traffic and then legitimate signups to their page."
With such a reach, uSocial say business is booming and claim to have taken over a quarter of a million dollars in sales since the launch of the service only a few short months ago.
Facebook themselves haven't been too pleased with uSocial's operation as they sent the company a cease and desist notice recently, though an agreement has now been reached.
"We've come to some mutually-agreeable terms with Facebook regarding our service. We have no intention of taking it down," said Hill.
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