tskinousagi-san, hajimemashite.
Thanks very much for your kind offer to provide grammar study material. Perhaps it would be more accessible if it were added to the site as lessons linked to on the Lessons page, or somewhere in the Language Reference section. Let us know what you think might work best.
I am not familiar with the matome bunpou text you refer to. If this is copyrighted material, we would need permission to publish it here, but of course your own explanations of grammar issues would be welcome, even if they are guided by a text someone else has written.
Here are a couple of sites you might find helpful, if you don't already use them.
http://www.readthekanji.com/ has vocabulary arranged by JLPT level, with an example sentence for each word. One is asked to type in the syllables for words written in kanji. The site recently started charging a one-time fee for use, but I think it is still only $10.
http://smart.fm/ has 6000 vocabulary words, each with a sound file, an example sentence, and a sound file for the example sentence. The testing is multiple choice, which I don't find very useful myself, but there is a nice dictation exercise, and just the availability of the huge number of sound files makes the site a treasure trove.
One of the members of this site, zone-san, makes a free program for Windows named zkanji which incorporates word and kanji dictionaries (JMDICT and KANJIDIC) and has a variety of useful features for studying. It can be downloaded here:
http://zkanji.sourceforge.net/ . zone-san recently added a handwriting recognition module, and is working on testing the writing of kanji via a mouse or graphics tablet.
どうぞよろしくお願いします。
tony