So yeah... We don't know who this guy is that's drawing these, but maybe we should make a placeholder artist tag anyway? That way if we ever do find out, we won't have to find these images among the thousands of oekaki-tagged uploads.
Dancougar and I have been trying to source him for ages. I save them all as 'ds girl ###.ext' because the first ever one I saw had the older girl playing a DS...
All I know is that the threads on 2chan often mention "アネク" and of course "Onee-san" and such. My google has returned nothing though. My everlasting love (and maybe an invite if applicable) to anyone who can provide a source (and PM me or Dancougar to indicate as such).
Of course, there's the good chance there IS no website, and it's just some guy upping to 2chan oekaki boards. That would suck.
