Here is an excellent site for a refresher course as it were on emergency prep, such as foods and food storage, water storage, etc. Really good stuff here worth keeping.
We will be adding to the rest of the supplies now that the 6 month plan is in place. Mainly things like beans, rice, wheat and flour, powdered milks, etc.
And water. Honestly, we lack decent water storage here in a big way. Can't rely on hitting the spring all the time as it's too far from the homestead. If anything is lacking in our pantry and storage set up here it's water (although there are plenty of things lacking I'm sure). Water is a big deal. The water is a bigger deal than the food in terms of survival.