Quote:
Originally Posted by bluegie
@ayu_929: 2ch users are just normal users with some access to the music rite? avex is a big company. I'm sure that they have a method to collect the information with or without oricon. 
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Some 2ch users are subscribers to Oricon. 2ch is like one of the first places to get any Oricon numbers.
avex might have a method, but ultimately it's how Oricon calculates the numbers and not avex.
One of the Natsustyle's first entries about how he calculates the below top 3 index.
http://blog.livedoor.jp/ustan777/archives/50951079.html