I visit conceptart.org quite often lately, just for their Daily Sketch Group section. They have a bot running which posts a new topic every day. You can interpret the subject the way you like and draw it accordingly. Quite popular there.
However their bot died and it seems no efforts are made to repair it. New topics are posted a few times by hand but not that consequent.
Anyone feel like adding something similar as a sub section to the 2d wip forum of CGTalk would be cool? I’d certainly join in only downside is that it’s like stealing their idea, but well, if they don’t repair it, I consider it kind of their fault.