I have a question regarding the sketch tag. I know artists who make sketch-like, quick drawings in oekaki or OC or some other oekaki-esque format. Does that warrant a sketch tag as well, or is sketch ONLY for pencil/pen/charcoal/a virgin's blood etc.?
I'm talking about stuff like this:
http://visublog.mechafetus.com/system/images//2007/08/igoredits.jpg
Not that I'd really want to post that, but it gets the point across.