Writing & Editing The 5 most popular stories on PR Daily this week This week, readers were interested in peak engagement hours for social media platforms, costly communications mistakes to avoid, handy tools for more effective PR, and more. By PR Daily StaffJan. 12, 2018 SHARE Ragan Insider Premium Content Here are the five most widely read stories this week on PR Daily: 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.