How much does the average user actually use Facebook, specially nowadays? I'd be rather surprised if the total amount of time spent on Facebook didn't have som

How much does the average user actually use Facebook, specially nowadays? I'd be rather surprised if the total amount of time spent on Facebook didn't have something like a power-law distribution. The only reason I have an account at all is so that, in the unlikely event that I might be notified of something that I actually care about or that someone might try to reach me, I'll know it. And I'm sure that is true of at least a portion of other users. Having Facebook today is like having a landline seven years ago. I wonder if in seven years Facebook will only be used for marketing, too.