Crisis Management How apps and social media help Floridians get through Irma Whether people were directed to evacuate or stock up on supplies and remain indoors, mobile technologies along with Twitter and Facebook became essential communication channels. By Beki Winchel@bekiwekiSept. 11, 2017 SHARE To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.