Social Media The 5 most-popular stories on PR Daily this week Hashtag basics, brilliant responses, PR terms defined, and more. By PR Daily StaffJune 1, 2012 SHARE Ragan Insider Premium Content Hashtag basics: Why they work, and why they fail 5 social media lessons from Star Wars 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.