If you want to read about Japanese bands in Japanese, you won’t go wrong with Listen.jp, with its well-written profiles and links to similar bands in the “if you like X, you’ll love Y” fashion; the perfect cool for finding out about musicians you’ve never heard of but that are in styles you like.
LiveStation
NHK High School/NHK高校講座
Kanji Pict-O-Graphix
KanjiPoster
Remembering the Kanji
Remembering the Kanji III
Remembering the Kana
All About Particles
Japanese In Mangaland
Japanese In Mangaland 2
Japanese In Mangaland 3
Japanese Sentence Patterns for Effective Communication: A Self-Study Course and Reference
Mangajin's Basic Japanese Through Comics (Part 2)
Mangajin's Basic Japanese Through Comics Vol 1
13 Secrets for Speaking Fluent Japanese
英語は絶対、勉強するな!2:不安が消える・疑問が打っ飛ぶ・マジでペラペラ
英語は絶対、勉強するな!:学校行かない・お金掛けない・だけどペラペラ
Making Sense of Japanese: What the Textbooks Don't Tell You
The Quick and Dirty Guide to Learning Languages Fast