1. Netflix uses innovative techniques in their user interface to make finding movies an easy and personalized experience for their 5.7 million members. 2. They take a quantitative and qualitative approach to testing new design concepts and features through multiple prototypes and with real user data before full release. 3. Key features discussed include the star rating widget which predicts member ratings and recommendations, using Ajax techniques to simplify browsing and search, and testing new interactions to keep users engaged on the site.