So from what I understand it's something like 'live stream' or Drawball thingy built into the forums? It might clog them up a bit, but I think it's quite nice.
its not as live streaming. no live. no streaming. but you can set some up so you can let others color in
I'm still not really sure what an oekaki is, even after reading Wikipedia, but I can say that I don't think this site is art-oriented enough to warrant one. If someone want's to make a thread about good oekaki sites in the creatives or general discussions forums, that might be a bit better.