CLEVELAND, OH (WOIO) - Can you keep a secret?
Well, that's the point if you want to be a member in some social media circles.
Facebook has tens of millions of groups, many of them Secret Groups that you don't even know about.
Cleveland 19 News reporter Sia Nyorkor says some of the members in these groups are so protective, they wouldn't even talk about it.
They say it's kinda like the movie, "Fight Club."
"First rule of Fight Club, you do not talk about Fight Club, the second rule of Fight Club, you do not talk about Fight Club," said the actor, Brad Pitt.
Which makes it tough to find out what some Facebook secret groups are all about if you're not even supposed to know about them.
"In general these secret groups are pretty secret. Facebook goes to great lengths to protect these groups and thinks about them pretty carefully," said Cliff Lampe, Associate Professor of Information, University of Michigan.
There are three types of Facebook groups: open, closed and secret. There are tens of millions of them with no breakdown of how many are secret---those groups aren't even searchable and a member has to invite you to join. Topics range from parenting to health & fitness to more personal things like sex and relationships.
Tonight at 11, Cleveland 19 News reporter Sia Nyorkor asks why these groups are so secret.
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