I usually start with Food Wishes, Serious Eats, or the New York Times. Julia Child for French food, Just One Cookbook for Japanese food. Budget Bytes when the bank account is looking a little thin. Dessert Person when I have a lot of time and want to knock the socks off my friends.
Chetna on YouTube is a great resource for Indian dishes and techniques. For budget cooking I like Ethan Chlebowski, and for amazing quick and dirty technique and ingredient showcases I like Internet Shaquille
Ethan Chlebowski has become one of my favorites, his budget and healthy meal stuff is great.