I was just sorting through stuff and found the Japanese materials I made. Looks like I spent more time on this than I remember.
Full Conjugation Lookup Table (overkill)
Interactive Kana Table and Stuff (flash)
Alternate Hiragana Table (pointless flash)
List of Grammar Structures
I wanted to cover the portions of the first couple years' worth of material, concisely. Didn't get too far. Comments welcome, as always.