Pinterest is a social media platform where users can create boards to organize and share images and other visual content on various topics. It allows for collaborative boards where multiple users can add pins. Some ways Pinterest can be used for course collaboration include having students pin design inspirations, social media content, photos, videos and other materials to shared boards. This allows for peer feedback and critique. Pinterest engagement has been growing and many students are already active on the platform, making it a useful tool to connect classroom content with students' online activities.