MenuPages I spend most of my time in LA, SF and NY. Sometimes you want a specific dish or item, not just a restaurant/bar. It works.
BigOven 250,000+ Recipes and Grocery List Even more recipes! Over 170,000 at last count. The leftovers feature is cool. It suggests what to make with what you might have.
Foodspotting It has pretty pictures! And it has social networking features.