1.ORICON
  http://www.oricon.co.jp/

  Ranking Chart
  http://www.oricon.co.jp/ranking/index.asp

2.Daily Single
  http://www.oricon.co.jp/ranking/daily_single.html

  Weekly Single
  http://www.oricon.co.jp/ranking/weekly_single.html

  Monthly Single
  http://www.oricon.co.jp/ranking/cd_single.asp?c=1&sc=1&term=2

3.Daily Album
  http://www.oricon.co.jp/ranking/daily_album.html

  Weekly Album
  http://www.oricon.co.jp/ranking/weekly_album.html

  Monthly Album
  http://www.oricon.co.jp/ranking/cd_album.asp?c=1&sc=2&term=2