How do you know?

[Shandrio]

Where do you get the information to make your charts? How do you know which single is first in my country (Argentina), and which come next?

Thanks in advance,
Shandrio

PS: Oh... by the way... the site is EXCELENT ;)

[Paris]

Shandrio,
we use data and information from our consultant partners (primary) and our friends @ IFPI (secondary).
Thanks for the kind words.

[Shandrio]

Thanks for your quick reply Paris