I find nothing wrong with Japanese Super Mario fansites, they are all really original and are full of amazing art.
However, most of them tend to be THICK in javascript (Those guys are goooooood!)!! This tends to cause errors in some people's PCs and internet connections...
I wonder why can't we find some Super Mario info site in Japanese? It would help a lot since it is closer to the Mother Base (a.k.a. Nintendo Co., Ltd.)...
I know of another Japanese Super Mario fansite! It even has an English version as a translation for western visitors!!
~Niji no Mannaka
I am a pure Super Mario lover!!
...and in no point in the future will he ever be abandonded by me!
I will even drawn the best Super Mario comics ever to exist!!