I've noticed the steady decline of the number of unique users / day over the last few weeks. The holidays (at least in the US) aside, it seems like we need about 5x as many users/questions/answer to achieve a healthy critical mass.
I've tried promoting this site to (ham) friends of mine and posted to the web sites of my clubs. I haven't paid much attention to the meta side of the sight and wondered if this has been discussed and if so what came of it.