A thread to post official places that have official wallpapers
http://shonenjump.com/e/game/index.html
http://shonenjump.com/j/game/index.html
http://shonenjump.com/j/sp_bleach/download.html
http://shonenjump.com/j/sp_bakuman/download.html
http://vjump.shueisha.co.jp/download/