Teaching online entails delivering a course fully or in part via the Internet and, in particular, the World Wide Web. Online course delivery in higher education is widespread and increasing. A range of offerings exists, including fully online degree programs, online courses in all disciplines of study, and hybrid courses, where face-to-face meetings are combined with online learning technology. This article describes the author's own experiments with online technology in adult education graduate courses, as she attempted to improve access to adult students while providing a collaborative, connected, and experiential learning environment. The author briefly describes three cases where she designed a blended course including both face-to-face meetings and online interactions. She then compares and contrasts the different technologies used, and how they shaped the knowledge collectively constructed by her and the students during the semester. Finally, she discusses the implications of what she learned for practitioners. (Contains 4 figures.)