This is a very good picture that gets the point across extremely quickly and effective. On this poster, “Facebook” should really be a fill-in-the blank option. There are hundreds of services that are “free” online, but what you consider free, is not really that “free.”
What do you give up to facebook when you use their “free” service?
If you ran facebook, would you do it for free? or would you sell data to advertisers?
how else would you make money?
Just something to think about.