There’s an article written a while back in the Scientific American that discusses what makes someone an expert in something. I found a lot of parrallels with learning sentences (these are the small chunks/quanta that the article discusses) and spaced repetition. You shouldn’t be reading English , but do check it out for some quick insight or whatever. Update...
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