I made a post on my blog about website disaster katas to ponder/practice:
http://www.travisdunn.com/website-disaster-katas, and thought it might be of interest to some of the people here since PBBGs, for one reason or another, seem especially prone to disaster in both its mild and spicy forms. :p
Unlike traditional code katas, mine don't require you to produce code, only to produce some thoughts about responding to the disasters in question. If you're a veteran, you'll probably be familiar with the threats, even if you haven't actively considered how you would personally respond, but for fledgling developers and webmasters I can imagine there's a lot of value to be found there.