Online college instructors have the same job duties as professors on campus; the main difference is that instead of teaching in a classroom, online college instructors hold classes through website portals or live streaming. As an online college instructor, you may teach online courses as an extension of a college's class offerings, or you may be an instructor with an online university. Your job duties include creating lesson plans, giving lectures, grading assignments, and administering tests. You also have "office hours" where students can contact you for additional help with assignments. Online college Instructors teach a wide variety of different subjects, depending on their specific field of expertise.