Social Media StumbleUpon drives more traffic than Facebook and Twitter How the hottest bookmarking site is stirring up trouble for popular social media platforms. By Meredith CoburnOct. 31, 2011 SHARE Ragan Insider Premium Content Who would have thought “stumbling” was a good thing? It’s no secret that Facebook and Twitter are hugely important in the world of corporate communication. But are they the most effective when it comes to driving users to your website? According to this infographic from PR Newswire, not by a long shot. 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.