It's that time of year, bean soup and split-pea soup are winter favorites of mine. I don't really care if the soups contain actual meat chunks, but I find the flavor absolutely essential to the soups. I also love what the gelatin does for the mouth feel. I've always been very happy to get such a broth as a by-product of cooking pork, but I've never set out to make pork broth. If I could afford all the bacon I could ever want it would be problem solved. Alas, I cannot. What products should I be looking for, and what techniques might be helpful with those perhaps less familiar products? I have all the time in the world, but not much money.
Edit: Specifically, I'd like especially to know about cuts that you might recommend. Of course I'm familiar with loin, ham and belly, but less so with neck, feet and jowls - that kind of thing. My local grocery occasionally has smoked neck. When I've seen it I wasn't thinking pork stock/broth at the time so I didn't really look at it or the price. But now that I want broth, I wonder about the lesser known (to an American) cuts. There are a few local butchers that might bag up "stuff" for me, if I knew enough to know what to ask for. Smoked products might be preferred (I like the smoky taste in bean soup and that's specifically why I would make such a broth) but I could always add at least some smoked product to the actual soup.
For what it's worth, "broth" or "stock" has always been a rather meaningless distinction to me. Is it liquid that adds the flavor of the meat to whatever I'm making? That's what I'm looking for.