Well seeing as how internet pre-orders would factor into the charts (more relevantly, sales) those alone would be irrelevant. You can't use Twitter or Facebook to gauge anything either, really. It's free to sign up on both of those services and it just takes a click to follow/like an artist. You know there's people with multiple accounts too. I mean... Lil Wayne has 26,987,513 likes on Facebook. Do you think this is a relevant number? There's no way that nearly 27 million people are buying his albums, and combining all of his shows, I doubt he even comes close to 10 percent of that in attendance a year.