The writing group is going well at the other, private blog. We have about 10 members so it is pretty much full, though i will accept an 11th if someone else wants to join.
We basically identify five elements: the long-term project, the short term project, the weekly goal, whether last week's goal was accomplished, and if not, why not. It's very simple, but the simplicity is the trick of it, so to speak. A more complex system would not work as well because it would not be as clear. Basically, there is no place to hide.