Nomadic Knits Serial is a great publication that showcases a different region of the country in each issue. They include articles about the people, landscapes, history and life in the regions on which they focus. And of course, they're full of patterns.
Issue 4: Maryland, DC, Virginia
Issue 5: Vermont
Issue 6: Mississippi, Louisiana, Alabama
Issue 7: Michigan
Issue 8 : Washington
Issue 9: Iowa / Nebraska