allrecipes.com: In addition to having ratings and reviews on the recipes, you can convert to metrics and adjust the number of servings easily on this site.
Cooking Light: More than just a collection of (delicious) recipes, this online version of the magazine has articles covering a variety of your cooking questions and needs.
Cookpad: Whenever I buy a new Japanese ingredient, Cookpad is the first place I check for recipes. Now there’s an English version of the website!
Books in Print