The US Department of Homeland Security's Ready.gov site was supposed to be the official site that tells Americans how to prepare for terrorism, natural disasters and other things that may befall us. The problem is that it sucks. It's been parodied many times and uhm, it still sucks.
Anyway, over at the Federation of American Scientists, an intern was able to develop much better information in two months of work. The result is ReallyReady.org