Media Relations PRSA reveals the final three definitions of ‘public relations’ One of them will define the industry. What do you think? By Michael SebastianFeb. 13, 2012 SHARE And they are: 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.