The changing media environment makes research using Media Exposure even more complicated than before. The multiplied number of media channels is accompanied by an immense increase in the total amount of messages communicated. People are exposed to messages anytime and anywhere. The new media environment presents challenges for the measurement of how people are ‘exposed’ to media content, which is crucial for the understanding of media use, media success, and media effects. This is the theme of this international seminar on the challenges of tapping media and communication exposure in a rapidly changing information environment and media landscape. Speakers will present state-of-the art insights on both self-reported and observed media exposure. The event ends with the launch of a site listing media exposure measures, which is a service and a tool to the academic community.