Something that looks very underdeveloped here is the 'What are you working on now' discussion.
My thought is that rather than treat this as a discussion, create a tab (what a you working on) in which artists submit just an image of their current project - in other words a visual Twitter feed. You can create painting/sculpture/installation and so on categories. offer the ability for individuals to discuss the work back on the discussion boards. I think just that stream of ongoing visual ideas would be a very interesting micro-history of what's going on and it eliminates the featured artists tsunami that everyone gets buried in.
In other words, if you're working on something post it (once) and move on giving the next artist an opportunity in the moment.
Secondly, at times of historical significance, such a feed would create an amazing snapshot of how an event affects the artistic community.