The events of September 11 gave rise to new opportunities to think about intergroup relations and how they can be strengthened. This article summarizes how communities across the nation have initiated activities to help people grieve and to prevent further violence against Arabs, Muslims, and other Middle Easterners and applies a set of research-based principles on intergroup relations to communities' responses to September 11. The article also demonstrates the importance of mov-ing beyond the current responses to more comprehensive community strategies that are informed by these principles and other lessons learned. These strategies include multipronged approaches that help individuals grieve and heal, engage institutional leaders, and support community action.