Alaskajim
Japan singles charts
http://www.alaskajim.com/charts/currentsingles/international/japan.php
Allcharts
Official japanese top singles. weekly updated chart.
http://allcharts.org/music/japan/singles.htm
Gamed
Wekelijks bestudeert gamed de japanse charts van media create, ook deze week nemen we de cijfers onder de loep. media create lanceerde vandaag de verkoop-cijfers van 26 maart tot 1 april 2012. ..
http://www.gamed.nl/view/96343
Jpopasia
Watch the top 30 jpop/kpop/cpop music videos! jpop/kpop/cpop charts - weekly updated.
http://www.jpopasia.com/charts
Billboard
Check out billboard's top music charts. from r&b and rock, to hip-hop and pop, you can browse music by genre to catch a glimpse of the most popular music. visit billboard.com today.
http://www.billboard.com/charts/japan-hot-100
Top40 Charts
Japan top 20 on top40 charts. top40-charts.com provides music charts from all over the world, like us / uk albums and singles, bilboard chart, dance charts and more. read the latest music news on rock, pop, country, jazz, rap, hip hop and more, get ringtones and lyrics.
http://top40-charts.com/chart.php?cid=16
Hot 100
Hot 100
http://www.fm802.co.jp/hot100/