Ann Cathrin Riedel, founder of the agency UP DIGITAL MEDIA which is specialized for digital public affairs and public relations, is an expert for social media communication. She designs communication strategies for organizations with a focus on political actors. She was a guest lecturer for social media communication with a focus on branding and community management at the Hochschule Fresenius in Düsseldorf. She is engaged into digital politics as the chairwoman of „LOAD e.V. - Association for Liberal Digital Policy“ and as a member of the working group „Ethics in the Digitalization“ of Initiative D21.