I read a lot of food blogs before starting to write one myself. Some of my favorites are listed here by category.
Vegan/vegetarian/other special diets
Kitchen La Boheme
I love the artistic photos that go along with the food Alyssa Yeager writes about. It's fun and sassy. Takes quite a while to load up on dialup, though. (I know, I know. I must get into the 21st century soon.)
Vegetarian Times (self-advertised as the world's largest collection of vegetarian recipes).
Vote for up and coming chef finalists in a VT contest or enter the reader contest here. I have liked this magazine for years; the online version is equally good, featuring numerous resources.
General Healthy Food
Clean Eating. If I could have only one healthy food magazine, this would be it. The website gives a good sampling of what's available in each magazine. Also, see my prior review here.
About.com features all kinds of dessert/baking recipes, including healthy ones. You simply click on the appropriate category or do a search. My friends from work and I found a bunch of recipes here for the cookie exchange we had last December. (I really wish I could recall which no-bake recipe I used, so I could give you the direct link. It wasn't the most healthy recipe, as it had a fair amount of sugar and butter, but it did have whole-grain rolled oats in it, at least.)
Medieval Cooking. Jennifer Strobel has some thought-provoking entries. Currently, she's in the throes of planning an authentic medieval-style feast. Updates fairly regularly, but apparently not more than once, maybe twice a week.