I have a few sites. I normally avoid the bigger ones just because they are overwhelming and many of the recipes I have tried are mediocre.
* ezrapoundcake.com is a good site. I've made quite a few recipes from here and a few have been some of my favorites.
* smittenkitchen.com has some more exotic recipes but I've been happy with what I made.
* sippitysup.com is a site I only made one recipe from but loved it. Specifically, the coq au vin.
Give these sites a try.