Well, for starters, I'd like to be able to add my site, but as I mentioned, I cannot find the "Suggest a Site" feature mentioned in your news item.
I'll be frank (just for a moment and then I'll be David again - buh-da-bump) and ask what is the goal or the mission? I know you said it's a place for NPs to gather, but what would like the NPs to do once we get there? I saw a couple things listed under articles... Are you trying to be Sharepoint-U but geared more toward the folks that most likely don't have ready access to programmers, etc (that may be a gross generalization of NPs)? Are you looking for folks (NPs) that have managed a degree of success with Sharepoint to submit articles?
I totally understand the "on the fly!" Heck, I think that is how many MOSS2007 users have no choice but to operate! 
If you are hoping to be a central resource for things like FREE webparts to accomplish various tasks, I'm all for it! I know as a educational service center, we have to do everything we can for as 'free' as we can get it! :-)
I think the potential is there, I'm just not sure right now what it is you are wanting to achieve....