Here are some Zone 4-6 garden blogs:
This Garden Cooks The Casual Gardener A Corner Garden
Gardening for Nature The Real Gardener Our Little Acre
Mr. McGregor's Daughter The Garden's Eye View Gardening with Soule
bwisegardening Garden Wise Living The Mad Bioneer
Gardening in the Burroughs of NY An Obsessive Neurotic Gardener
And a Foodie Blog with links to other foodie blogs: Eating With My Mouth Open
An Irish girl gardening in California: We Didn't Come Here for the Grass
My favorite crafting blog Betty 2 Dogs Today