Thanks to today's technology, courses that don't require meeting in a classroom are not only possible; they're increasingly common. In fact, these days, even classes that do meet in person very often have an online component (even if that just means that the syllabus is posted on a website and assignments are turned in online). Students in traditional, in-person courses are increasingly required to participate in interactive online activities as part of their course work – such as contributing to a discussion forum, adding information to a wiki, or taking part in video web conferencing. Regardless of how many (or how few) online components a course entails, today's learning management systems (LMS) give instructors many options for how to handle important aspects of teaching, from enrolling students to organizing lessons and tracking student progress. Moodle, Course Toolkit, EDU 2.0, JoomlaLMS, and ATutor are all impressive and versatile systems available for educators.