One of the best free resources available to those interested in preparing for survival of disasters is the LDS Preparedness Manual. It is assembled and published by the Church of the Latter Day Saints. Regardless of your religious leanings, it is a valuable guide with only a little LDS philosophy sprinkled in.
Here is a link to an online version: http://www.abysmal.com/LDS/Preparedness ... edness.pdf
Here is a link to an online version: http://www.abysmal.com/LDS/Preparedness ... edness.pdf