The document discusses design challenges and interventions for the iWitness website to support two goals for users: 1) To engage archive materials with depth and sophistication, becoming mini-experts, and 2) To develop reflective understanding of their own position in relation to testimonies. It identifies 5 key moments for interventions: the first visit, return, testimony viewing, activity completion, and activity design. It provides examples of connections and suggestions for short, medium, and long-term interventions including tutorials, relevant connections, tracking user activities, and a user workspace.