A famous economist once quipped, “If something cannot go on forever, it will stop.” The logic is uncontroverted. And few would argue with its application to the work of civil society organizations. Yet far too often the principle is ignored or neglected in practice. More and more civil society organizations across Europe struggle with new external and internal challenges to their organization or initiative. With this in mind, sustainability is the theme of this week’s highlights. Review an expert analysis and outlook of advocacy organizations’ financial sustainability, discover partners efforts to make civic education more sustainable, and learn from our own data analysis of Ukrainians’ propensity to donate to CSOs.