I briefly thought about creating a couple of sublists in my LJ friends list, but thought better of it. Most of my posts are short and stick to one topic, so if my friends don't like that topic they can skip the post and move on. Hell, that's what I do with some people on my friends list. There are people on there who I would never discuss politics with because it would ruin a pleasant working relationship, and other friends who would be bored to tears by my enthusing over anime or SF. (Okay, actually I can't think of any people like that, but only because I misplaced Madge somewhere in here.) People can deal.
::waiting for the laundry to get dry and the bedroom to cool off::