In "Revisiting the Four Waves of Feminism in US History," students are required to read about developments in the history of feminism from 1848 to the present and then take notes based on subheadings from a very user-friendly website. This activity has proven to be a useful tool in the writing of essays, exams, projects, reports, quizzes, and tests, and it is an excellent way for students to engage in on-line learning.