by Mr. Zipph, Survival Blog:

Over the years, I have read many articles on communications in a grid-down situation. Those articles typically focus on using ham radios or CB radios to communicate with other like-minded folks in a TEOTWAWKI scenario. I have also read articles focused on the importance of gathering and accessing important information that you would need if the Schumer hiints the fan (TSHTF). These articles typically discuss the importance of having hard-copy books and printed planning information, contact information, and other important information that would be valuable to have.