An instructor-oriented resource providing information on implementing clickers in organic chemistry courses. Part I gives instructors information on how to choose and manage a CRS system, develop effective questions, and integrate the questions into their courses. Part II contains 140 class-tested, lecture-ready questions. Most questions include histograms that show actual student response, generated in large classes with 200-300 students over multiple semesters. Each question also includes insights and suggestions for implementation.