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Originally Posted by KarenPang

honestly , whatever data I've obtained are all taken from arama which the LJ user took a lot of time if not trouble to post the data on a weekly basis but he/she seems to stop doing that about 2 weeks ago

that said , it's not very difficult to log onto Oricon's website itself to check which's what I do on a daily basis , be it for singles , albums or NINKI index

Agreed

For reference:
Daily single rankings - http://www.oricon.co.jp/rank/js/d/
Daily album rankings - http://www.oricon.co.jp/rank/ja/d/
Weekly single rankings - http://www.oricon.co.jp/rank/js/w/
Weekly album rankings - http://www.oricon.co.jp/rank/ja/w/
Monthly single rankings - http://www.oricon.co.jp/rank/js/m/
Monthly album rankings - http://www.oricon.co.jp/rank/ja/m/
General DVD rankings (weekly) - http://www.oricon.co.jp/rank/dg/w/
Music DVD rankings (weekly) - http://www.oricon.co.jp/rank/dm/w/