Simmer (formerly Foodie) - Yelp, but for every dish on the menu
New Tab by Flickr - Get a beautiful photo each time you open a new tab
Spoon University - Food network for next generation.
Exposure New Tab - Get a beautiful photo from Exposure in every new tab
NYT Cooking - iPhone app with 17,000 free recipes from The New York Times
Less Boring New Tab - Your browser deserves a better new tab page