Eureka is the first book-film club for social change. We are a non-for-profit and non-data extractive social media platform designed for users to find books and films on a particular topic, discuss it with a community and ultimately, inspire engagement and action towards social change. Our goal is to use culture content as an excuse to promote deep dialogue. Our strategy is to prompt “Eureka moments”, which we define as individual revelations that can impact or transform the collective. Eureka’s one-of-a-kind feature is the “thematic cycles”, designed to leverage the vast potential of books and films to trigger deep and transformational thinking, and to build community. Eureka was developed as part of a fellowship supported by the Mozilla Foundation.