This is kind of a related idea, but what I think would be cool would be a "writing camp" of sorts. Basically each week you have a new challenge on the way to creating a story. So week one might be creating characters. You have a short article talking about how to make a good character and then everyone has a go at it and posts their results and gets feedback from whoever is running it. Then week two could be plot. etc. Basically by the end of it people would have all the things they need to start writing. And they could even use ideas/stories they already have to try to improve them.

Just putting it out there :)

I think all the topics in the poll look good!