> MySpace reached 50.6 million unique users in the U.S. in November.
So that is actually a hell of a lot better than the headline leads you to believe. That's about 1/6th of the entire US population that - according to the article - checked in on Myspace last November.
It's because the article literally says it's 50.6 million uniques in the US: "Between desktop and mobile devices, MySpace reached 50.6 million unique users in the U.S. in November. That’s a massive surge of 575% versus the same month in 2013."
I read this as implying their uniques (as measured by, say, Google Analytics) were 50.6 million in the US, which probably means less than 50.6 million Americans visited the site in Nov. For instance, if every one of those uniques visited on both their smart phone and their computer, then it'd actually be 25 million real people. The truth is likely somewhere between 25 and 50 million Americans visited in Nov.
I hadn't thought about how devices can double count uniques. But this is still massive. I thought 50 million world wide was a lot when I saw the headline and got very surprised when I read it was referring to only the US
EDIT: was "1/270 of Facebook's monthly users", now corrected.