Recipe Sites:
AllRecipes - Best Recipe & Cooking Site
SOAR
Recipe*zaar
A Random Recipe Page

The Cook's Thesaurus (Food Substitute/Substitution Tips)
Smoke Points of Various Fats

Recipe Blogs:
Cooking for Engineers (with feed)
NPR: Kitchen Window (with feed)

Food Articles & Particular Recipes

New York Times (good, though no longer updated)