Acres USA has (after a zillion years) updated their website. One section I noticed was about submitting articles:
http://www.acresusa.com/writers-guidelines/
Like probably many small magazines (I've written two articles for a political
magazine here in Slovakia) their editors are hungry for good content.
I don't have really anything useful to write, as I'm just slogging along in our messy homestead, but I bet some people here have successful ideas they could promote in Acres.