I just discovered caloriecounter.about.com. You can put a family recipe in there and it spits out an analysis! Very cool.
I haven't found any I'm particularly thrilled with for entering in one food item. I like fitday, but if I enter "egg", for instance, I have to sift through hundreds of different preparations and I think it lists the egg's family tree. LOL! I don't care who its parents are, I just want to know how many calories are in an egg!