The second group are people who think about being prepared for natural disasters and self-sufficiency. For both groups, this site is based around the idea that you cannot survive more than:
two seconds without protection
two minutes without air
two hours without shelter
two days without water
two weeks without food
two months without a plan.
Nor can we survive too long without humor
As I post items, I'll link them to these categories, with the intent of making the site easier to search. Check out each individual page for more details about that component of preparedness for the Zombie Apocalypse.