Mm, well, you could always try a search on /rs/ on 4chan... And I know the cg_doujin community on here has tags specifically for both circles, although you'll have to join to see most of it... There used to be a pretty big archive of doujins that was linked there, but the site died, I'm afraid.
Oh, and if you don't mind het, Fakku has a few iYou scans. They're all porn, though. XD
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Oh, and if you don't mind het, Fakku has a few iYou scans. They're all porn, though. XD
Sorry if that wasn't helpful.