Wasn't Oku doing doujins before? Or was it Tenjou Tenje's/Air Gear's author? Or both? :P
I don't know about Oku but Oh Great did a lot of doujins before he got into TenTen and AirGear. In the case of Oku, I've never read Hen, Zero One or Meteru...maybe I'll pick them up.
Speaking of which Oh Great doesn't seem to have anything new after both TenTen and AirGear ended.
Well, he earned his break. Maybe he'll get back into the doujin business?