Social Media 5 ways brand managers can use Tumblr The blogging platform has grown in popularity, especially when it comes to visual content. PR and marketing pros can get on board with these tips. By Beki Winchel@bekiwekiDec. 2, 2014 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.