Mathias Müller von Blumencron is the editor-in-chief of Digital Media at Frankfurter Allgemeine Zeitung. From 2008 to 2013, he was one of the editors-in-chief of Der Spiegel, in collaboration with Georg Mascolo. He was in charge of all digital products of the publishing house. Prior to this, he was editor-in-chief of Spiegel online, which he developed into the leading German-language news site on the Internet.