[paglia_s]

As someone else said, Groups.

Would I prefer them to be hosted somewhere else like a forum? Yes, Groups on Facebook are quite terrible to use with the non-chronological ordering, the comment system that encourages everythign but in depth comments, ... but the reality is that for a few subjects that I'm interested like development projects in the city where I live, .. they're the place where I can find the most up to date info and discussion