Third and most practically, for both my students and me, Twitter simplifies course management by replacing at least three classroom technologies. Twitter replaces the class listserv (or course blog, Blackboard, or discussion group) for our outside-the-classroom discussions and resource sharing. Twitter replaces e-mail announcements for new readings, location changes, and relevant happenings around the city. And Twitter replaces the cardboard box I used to bring to class to collect papers and other assignments. Now my students post tweets with links to their work.