Here is an interesting new article I dug up on http://www.weekender.co.jp/ that details a nonprofit organization, or NPO, in Japan with express purpose of helping socially withdrawn kids.
Called the 'Newstart NPO' center, it's setup seems similar to the one in which I did my field research, although I'm sure their methods and philosophy are different from Takeyama Gakko where I performed my own research. To the right is an image of Newstart founder Noki Futagami taken from the source article.
The article, titled "Newstart NPO offers a way back into the world for lost generation of Japanese ‘hikikomori social withdrawal children" is by Ian Priestly, and offers a pretty good glimpse of the hikikomori support industry, though I wouldn't say I agree with all of the recycled media discourse on hikikomori contained in the article, it is still a useful resource.
For the brave or language fluent, here is the direct link to Newstart's website in Japan.
UPDATE: Here is an English link to Newstart's website, though not as comprehensive as the Japanese site, it's useful.