As you may have seen, I have developed (crude, but effective) userscripts to filter news sites. But, you are right, they generally work best for world or populous cities where there is a lot of input. Local requires a lot of curating and I'm always digging for sources. Even with sources, the news is very thin for rural areas. It's also FULL of non-news chatter --police blotters, fire reports, auto accidents, obituaries, etc.
Louise has a FB account and, as you suggest, it is a good source for restaurant and local business info --usually sort of casual reviews.
BTW, it is possible to filter FB, but it's a PITA.