From time to time some company or another will produce some wonderfully fabulous report claiming this or that, a zillion people will take snippets of that information and publish it to back up their own claims of this or that but for the most part there really isn't any real information like that available.
Awhile ago I started Fame Registry with what little statistical information there is to rank and track porn stars using some sort of attempt at having real data but as far as the rest of the industry goes, I just don't know that you can really find that kind of information.
Even so called sales charts to try and see which studio is best is faked or fudged in one way or another.
Forget trying to find out real sales #'s on movies. Those are as fake as it gets. When someone says they sold 50,000 units it really means 5,000 (if that) and if someone tells you they moved 8,000 units of a gonzo title that really means 800.
People are just so full of shit they will say anything to make you think they are fabulous.
In terms of websites, if someone says 1 million visitors an hour, I try not to fall out of my chair laughing but you know there are people who actually claim that about their websites.
1 in 3 people who surf porn are females. REALLY? -rolls eyes- No. That isn't true either. LOL I would say that probably 1 in 50 might be females but maybe not even that. 1 in 3? LOL
In terms of top pay sites, Alexa isn't really all that accurate but you could use it to grab some information from it and be remotely right. Well maybe not remotely but probably as close as you are going to get. LOL
Here is my favorite Alexa quote --
"Visiting Alexa is much like going to see a psychic and requesting a palm reading so you will know your future. Sure it's fun and maybe puts your mind at ease just a little but it doesn't really mean anything said is true."
http://lukeford.com/2011-03-23/are-s...at-uninformed/